Defiant North Korea fires ballistic missile into sea, Japan protests

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North Korea Fires Missile Into the Sea

North Korea fired at least one ballistic missile which flew about 800 km (500 miles) before hitting the sea off its east coast, South Korea's military said on Friday, as the isolated state stepped up its defiance of tough new U.N. and U.S. sanctions.

A U.S. official told Reuters in Washington it appeared to be a medium-range missile fired from a road-mobile launcher. That would mark North Korea's first test of a medium-range missile, capable of reaching Japan, since 2014.

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The missile, launched from north of the capital, Pyongyang, flew across the peninsula and into the sea off the east coast early Friday morning, South Korea's Office of the Joint Chiefs of Staff said in a statement.

It appeared the North may have fired a second missile soon after from the same region, with a projectile disappearing from radar at an altitude of about 17 km, the statement said.

South Korea did not confirm the type of the missiles. But 800 km was likely beyond the range of most short-range missiles in North Korea's arsenal. The North's Rodong missile has an estimated maximum range of 1,300 km, according to the South's defense ministry.

See photos of tensions along the DMZ:

17 PHOTOS
Koreas tension, Kaesong North Korea and Demilitarized Zone
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Defiant North Korea fires ballistic missile into sea, Japan protests
A North Korean woman cycles with her child riding in a basket on Monday, Feb. 22, 2016, in Kaesong, North Korea. In response to the North's recent long-range rocket launch, Seoul shut down a factory park in Kaesong jointly run by both Koreas and this has cost the impoverished North a rare source of legitimate hard currency. (AP Photo/Wong Maye-E)
North Korean children rest at the side of a road on Monday, Feb. 22, 2016, in Kaesong, North Korea. In response to the North's recent long-range rocket launch, Seoul shut down a factory park in Kaesong jointly run by both Koreas and this has cost the impoverished North a rare source of legitimate hard currency. (AP Photo/Wong Maye-E)
North Korean soldiers guard the truce village of Panmunjom at the Demilitarized Zone (DMZ) which separates the two Koreas on Monday, Feb. 22, 2016, in Panmunjom, North Korea. Though the world's most fortified border can often seem like a tourist trap, drawing throngs of camera-happy visitors on both sides every year, to the military-trained eye the Cold War style standoff along the DMZ is an incident waiting to happen. And with tensions between Seoul, Pyongyang and Washington, this is one of those times when that's more true than ever. (AP Photo/Wong Maye-E)
The South Korean building is seen in the background as North Korean soldiers guard the truce village of Panmunjom at the Demilitarized Zone (DMZ) which separates the two Koreas, on Monday, Feb. 22, 2016, in Panmunjom, North Korea. Though the world's most fortified border can often seem like a tourist trap, drawing throngs of camera-happy visitors on both sides every year, to the military-trained eye the Cold War style standoff along the DMZ is an incident waiting to happen. And with tensions between Seoul, Pyongyang and Washington, this is one of those times when that's more true than ever. (AP Photo/Wong Maye-E)
North Korean children play at the side of a road on Monday, Feb. 22, 2016, in Kaesong, North Korea. In response to the North's recent long-range rocket launch, Seoul shut down a factory park in Kaesong jointly run by both Koreas and this has cost the impoverished North a rare source of legitimate hard currency. (AP Photo/Wong Maye-E)
North Korean People's Army Lt. Col. Nam Dong Ho is silhouetted against the truce village of Panmunjom at the Demilitarized Zone (DMZ) which separates the two Koreas on Monday, Feb. 22, 2016, in Panmunjom, North Korea. Nam Dong Ho told The Associated Press that tensions have increased significantly along the Demilitarized Zone since North Korea conducted its nuclear test and rocket launch. He said he could not comment on operational details, but added: "The reality is that it is touch and go." (AP Photo/Wong Maye-E)
North Korean People's Army Lt. Col. Nam Dong Ho points to a map showing the line which separates the two Koreas in Panmunjom at the Demilitarized Zone (DMZ) on Monday, Feb. 22, 2016, in Panmunjom, North Korea. Nam Dong Ho told The Associated Press that tensions have increased significantly along the Demilitarized Zone since North Korea conducted its nuclear test and rocket launch. He said he could not comment on operational details, but added: "The reality is that it is touch and go." (AP Photo/Wong Maye-E)
North Korean People's Army Lt. Col. Nam Dong Ho speaks during an interview in Panmunjom at the Demilitarized Zone (DMZ) which separates the two Koreas on Monday, Feb. 22, 2016, in Panmunjom, North Korea. Nam Dong Ho told the Associated Press that tensions have increased significantly along the Demilitarized Zone since North Korea conducted its nuclear test and rocket launch. He said he could not comment on operational details, but added: "The reality is that it is touch and go." (AP Photo/Wong Maye-E)
North Korean soldiers guard the truce village of Panmunjom at the Demilitarized Zone (DMZ) which separates the two Koreas on Monday, Feb. 22, 2016, in Panmunjom, North Korea. Though the world's most fortified border can often seem like a tourist trap, drawing throngs of camera-happy visitors on both sides every year, to the military-trained eye the Cold War style standoff along the DMZ is an incident waiting to happen. And with tensions between Seoul, Pyongyang and Washington, this is one of those times when that's more true than ever. (AP Photo/Wong Maye-E)
Solar panels hang from windows of an apartment building on Monday, Feb. 22, 2016, in Kaesong, North Korea. (AP Photo/Wong Maye-E)
North Korean push their bicycles along a road on Monday, Feb. 22, 2016, in Kaesong, North Korea. In response to the North's recent long-range rocket launch, Seoul shut down a factory park in Kaesong jointly run by both Koreas and this has cost the impoverished North a rare source of legitimate hard currency. (AP Photo/Wong Maye-E)
North Korean children play near apartment buildings on Monday, Feb. 22, 2016, in Kaesong, North Korea. In response to the North's recent long-range rocket launch, Seoul shut down a factory park in Kaesong jointly run by both Koreas and this has cost the impoverished North a rare source of legitimate hard currency. (AP Photo/Wong Maye-E)
North Koreans ride their bicycles on Monday, Feb. 22, 2016, in Kaesong, North Korea. In response to the North's recent long-range rocket launch, Seoul shut down a factory park in Kaesong jointly run by both Koreas and this has cost the impoverished North a rare source of legitimate hard currency. (AP Photo/Wong Maye-E)
North Koreans walk near residential apartments on Monday, Feb. 22, 2016, in Kaesong, North Korea. (AP Photo/Wong Maye-E)
A girl crosses a street while other cycle along a pathway on Monday, Feb. 22, 2016, in Kaesong, North Korea. (AP Photo/Wong Maye-E)
North Korean men wait along the street with their bicycles on Monday, Feb. 22, 2016, in Kaesong, North Korea. (AP Photo/Wong Maye-E)
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Friday's launch quickly provoked a barrage of criticism and appeals.

Chinese Foreign Ministry spokesman Lu Kang urged North Korea to abide by U.N. resolutions and not do anything to exacerbate tensions.

The U.S. State Department in a statement urged North Korea to focus on taking concrete steps toward fulfilling its international commitments and obligations.

Japan lodged a protest with North Korea through its embassy in Beijing, Prime Minister Shinzo Abe told parliament.

"Japan strongly demands North Korea to exercise self-restraint and will take all necessary measures, such as warning and surveillance activity, to be able to respond to any situations," Abe said.

South Korea's Unification Ministry said Pyongyang should focus on improving the lives of its people and that provocative actions would help nothing.

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NUCLEAR WARHEADS

North Korea often fires missiles during periods of tension on the Korean peninsula or when it comes under pressure to curb its defiance and abandon its weapons programs.

Last week, the North fired two short-range missiles into the sea off its east coast and its leader Kim Jong Un ordered more nuclear weapons tests and missile tests.

That came after North Korean media said the North had miniaturized nuclear warheads to fit on ballistic missiles and quoted Kim as calling upon the military to prepare for a "pre-emptive nuclear strike" against the United States and South Korea.

U.S. President Barack Obama imposed new sanctions on North Korea on Wednesday over its nuclear test and satellite launch. The sanctions freeze North Korean government assets in the United States, bans U.S. exports to, or investment in, North Korea, and expands a U.S. blacklist to anyone - including non-Americans - who deal with North Korea.

North Korea conducted its fourth nuclear test on Jan. 6 and launched a long-range rocket on Feb. 7 in defiance of existing U.N. Security Council resolutions.

Japan military on alert over North Korea's planned rocket launch:

16 PHOTOS
NTP: Japan military on alert over North Korea's planned rocket launch
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Defiant North Korea fires ballistic missile into sea, Japan protests
In this undated photo released by the Korean Central News Agency (KCNA) and distributed in Tokyo by the Korea News Service on Wednesday, Feb. 1, 2012, North Korean leader Kim Jong Un, center, accompanied by military officers, inspects air drill at an undisclosed airbase in North Korea. (AP Photo/Korean Central News Agency via Korea News Service) JAPAN OUT UNTIL 14 DAYS AFTER THE DAY OF TRANSMISSION
A Japan Self-Defense Force member stands by a PAC-3 Patriot missile unit deployed for North Korea's rocket launch at the Defense Ministry in Tokyo, Sunday, Jan. 31, 2016. Japan's Defense Ministry installed missile interceptors at their headquarters in central Tokyo on Friday amid signs that North Korea may be preparing to launch a rocket or missile. (AP Photo/Shizuo Kambayashi)
A PAC-3 missile launcher is deployed on the grounds of the defence ministry in Tokyo on January 29, 2016. Japan had ordered on January 29 its military to be ready to destroy any missile fired by North Korea that threatens the country as concerns mount that Pyongyang is preparing a rocket launch. AFP PHOTO / JIJI PRESS JAPAN OUT / AFP / JIJI PRESS / JIJI PRESS (Photo credit should read JIJI PRESS/AFP/Getty Images)
TOKYO, JAPAN - JANUARY 30 : Patriot PAC-3 missile batteries is seen is the courtyard of the Japan Defense Ministry as Japan armed is in on high alert after satellite images showed North Korea was preparing to test launch a long-range missile. Japan's defence minister Gen Nakatani has ordered to target and shoot down any North Koreas rmissile threaten Japan territory. (Photo by David Mareuil/Anadolu Agency/Getty Images)
A Japan Self-Defense Force member walks past a PAC-3 Patriot missile unit deployed for North Korea's rocket launch at the Defense Ministry in Tokyo, Sunday, Jan. 31, 2016. Japan's Defense Ministry installed missile interceptors at their headquarters in central Tokyo on Friday amid signs that North Korea may be preparing to launch a rocket or missile. (AP Photo/Shizuo Kambayashi)
TOKYO, JAPAN - JANUARY 30 : Security police stand guard at the entrance of the North Korea building in Tokyo, Japan, on January 30, 2016. Japan armed is in on high alert after satellite images showed North Korea was preparing to test launch a long-range missile. (Photo by David Mareuil/Anadolu Agency/Getty Images)
TOKYO, JAPAN - JANUARY 30 : A Japanese soldier is seen close a Patriot PAC-3 missile batterie systeme control in the courtyard of the Japan Defense Ministry, on January 30, 2016, as Japan armed is in on high alert after satellite images showed North Korea was preparing to test launch a long-range missile. Japan's defence minister Gen Nakatani has ordered to target and shoot down any North Koreas rmissile threaten Japan territory. (Photo by David Mareuil/Anadolu Agency/Getty Images)
Soldiers walk beside PAC-3 missile launchers as they are seen in position on the grounds of the defence ministry in Tokyo on January 30, 2016. Japan had ordered on January 29 its military to be ready to destroy any missile fired by North Korea that threatens the country as concerns mount that Pyongyang is preparing a rocket launch. AFP PHOTO / TOSHIFUMI KITAMURA / AFP / TOSHIFUMI KITAMURA (Photo credit should read TOSHIFUMI KITAMURA/AFP/Getty Images)
Japan Self-Defense Force's PAC-3 Patriot missile unit deployed for North Korea's rocket launch at the Defense Ministry in Tokyo, Sunday, Jan. 31, 2016. Japan's Defense Ministry installed missile interceptors at their headquarters in central Tokyo on Friday amid signs that North Korea may be preparing to launch a rocket or missile. (AP Photo/Shizuo Kambayashi)
TOKYO, JAPAN - JANUARY 30 : Security police stand guard at the entrance of the North Korea building in Tokyo, Japan, on January 30, 2016. Japan armed is in on high alert after satellite images showed North Korea was preparing to test launch a long-range missile. (Photo by David Mareuil/Anadolu Agency/Getty Images)
TOKYO, JAPAN - JANUARY 30 : Security police stand guard at the entrance of the North Korea building in Tokyo, Japan, on January 30, 2016. Japan armed is in on high alert after satellite images showed North Korea was preparing to test launch a long-range missile. (Photo by David Mareuil/Anadolu Agency/Getty Images)
TOKYO, JAPAN - JANUARY 30 : Japan Defense Ministry building is seen in Tokyo, Japan, on January 30, 2016, as Japan armed is in on high alert after satellite images showed North Korea was preparing to test launch a long-range missile. Japan's defence minister Gen Nakatani has ordered to target and shoot down any North Koreas rmissile threaten Japan territory. (Photo by David Mareuil/Anadolu Agency/Getty Images)
A man walks past a PAC-3 Patriot missile unit deployed for North Korea's rocket launch at the Defense Ministry in Tokyo, Sunday, Jan. 31, 2016. Japan's Defense Ministry installed missile interceptors at their headquarters in central Tokyo on Friday amid signs that North Korea may be preparing to launch a rocket or missile. (AP Photo/Shizuo Kambayashi)
A PAC-3 missile launcher is seen in position on the grounds of the defence ministry in Tokyo on January 30, 2016. Japan had ordered on January 29 its military to be ready to destroy any missile fired by North Korea that threatens the country as concerns mount that Pyongyang is preparing a rocket launch. AFP PHOTO / TOSHIFUMI KITAMURA / AFP / TOSHIFUMI KITAMURA (Photo credit should read TOSHIFUMI KITAMURA/AFP/Getty Images)
A guard rides a bicycle past a PAC-3 Patriot missile unit deployed for North Korea's rocket launch at the Defense Ministry in Tokyo, Sunday, Jan. 31, 2016. Japan's Defense Ministry installed missile interceptors at their headquarters in central Tokyo on Friday amid signs that North Korea may be preparing to launch a rocket or missile. (AP Photo/Shizuo Kambayashi)
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The North has reacted angrily to annual joint military drills by U.S. and South Korean troops that began on March 7, calling the exercises "nuclear war moves" and threatening to wipe out its enemies.

The U.S. and South Korea remain technically at war with the North because the 1950-53 Korean War ended in an armed truce instead of a peace agreement. Over the last several weeks, the two Koreas have suspended economic ties over the mounting tensions.

South Korea and U.S. officials this month began discussions on deploying the advanced anti-missile Terminal High Altitude Area Defence (THAAD) system to the U.S. military in the South, despite Chinese and Russian objections.

On Wednesday, North Korea's supreme court sentenced a visiting American student to 15 years of hard labor for crimes against the state, a punishment Washington condemned as politically motivated.

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