4. Syrian army, allies preparing attack in Aleppo area
Officials said Syria's army and its allies are preparing a major attack on the country's largest city with the help of Russian airstrikes. The planned offensive is likely to cause more tension with its neighbor, Turkey.
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Top 5 on the go October 13
Top 5 On the Go: Tuesday October 13
LAS VEGAS, NV - OCTOBER 13: (L-R) Democratic presidential candidates Jim Webb, U.S. Sen. Bernie Sanders (I-VT), Hillary Clinton, Martin O'Malley and Lincoln Chafee take the stage for a presidential debate sponsored by CNN and Facebook at Wynn Las Vegas on October 13, 2015 in Las Vegas, Nevada. The five candidates are participating in the party's first presidential debate. (Photo by Joe Raedle/Getty Images)
A camera operator waits in the debate hall before a CNN Democratic presidential debate, Tuesday, Oct. 13, 2015, in Las Vegas. Democratic presidential candidates, Hillary Rodham Clinton, Jim Webb, Bernie Sanders, Lincoln Chafee, and Martin O'Malley will take the stage later today. (AP Photo/John Locher)
Presidential hopeful Bernie Sanders (L) speaks with Hillary Clinton during the first Democratic presidential debate in Las Vegas, Nevada on October 13, 2015. Democratic presidential frontrunner Hillary Clinton will finally square off with top rival Bernie Sanders in the party's first debate of the 2016 campaign as she seeks to prove she is the candidate to beat. AFP PHOTO/ FREDERIC J. BROWN (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)
This image made from footage taken from Russian Defense Ministry official website on Friday, Oct. 2, 2015, shows another attack made from a fighter jet in Syria. The Russian Defense Ministry says its aircraft have carried out 18 sorties in Syria in the past 24 hours, including 10 overnight in which seven sites were bombed. The annotations on the image were made by the source and indicate the center of the target, and its direction, yellow. (AP Photo/ Russian Defense Ministry Press Service)
In this image made from video provided by Homs Media Centre, which has been verified and is consistent with other AP reporting, smoke rises after airstrikes by military jets in Talbiseh of the Homs province, western Syria, Wednesday, Sept. 30, 2015. Russian military jets carried out airstrikes in Syria for the first time on Wednesday, targeting what Moscow said were Islamic State positions. U.S. officials and others cast doubt on that claim, saying the Russians appeared to be attacking opposition groups fighting Syrian government forces. (Homs Media Centre via AP)
Vice Prime Minister and chairman of the government commission to investigate the causes of the MH17 crash Hennadiy Zubko, right, speaks at a briefing for journalists in Kiev, Ukraine, Tuesday, Oct. 13, 2015. Investigators said the Buk missile that downed Malaysia Airlines Flight 17 exploded less than a meter from the cockpit, killing the two pilots and the purser inside in an instant and breaking off the front of the plane. The tragedy that killed all 298 people aboard the plane on July 17, 2014, wouldnât have happened if anyone had thought to close the airspace of eastern Ukraine to passenger planes as fighting raged below, the Dutch Safety Board said. (AP Photo/Sergei Chuzavkov)
Parts of the wreckage of the Malaysia Airlines Flight 17 are displayed in a hangar at Gilze-Rijen airbase, Netherlands, Tuesday, March 3, 2015. The plane was brought down over conflict-torn eastern Ukraine on July 17, 2014 and Dutch investigators are still probing the cause of the crash that killed all 298 people on board. (AP Photo/Peter Dejong)
MH17 flight recovery team members examine one of the areas of the Malaysia Airlines Flight 17 plane crash in the village of Hrabove, Donetsk region, eastern Ukraine Tuesday, Nov. 11, 2014. (AP Photo/Mstyslan Chernov)
FILE - In this Oct. 7, 2015, file photo, California Gov. Jerry Brown speaks before signing a bill to combat climate change during a ceremony at Griffith Observatory in Los Angeles. California enacted some of the nation's most aggressive social polices this year, including SB350, which calls for increasing the state's renewable electricity use to 50 percent and doubling energy efficiency in existing buildings by 2030. (AP Photo/Damian Dovarganes, File)
Jerry Brown, governor of California, left, shakes hands with Narendra Modi, India's prime minister, right, in San Jose, California, U.S., on Sept. 27, 2015. Modi is touring Silicon Valley this weekend, seeking investments from Fortune 500 companies. Photographer: Jeff Chiu/Pool via loomberg