Authorities: Bomb threats across US appear to be hoax

NEW YORK (AP) — Authorities say bomb threats sent Thursday to dozens of schools, government buildings and other locations across the U.S. appear to be a hoax.

Law enforcement agencies across the country dismissed the threats, which they said were meant to cause disruption and compel recipients into sending money and are not considered credible.

Some of the emails had the subject line: "Think Twice." The sender claimed to have had an associate plant a small bomb in the recipient's building and that the only way to stop him from setting it off was by making an online payment of $20,000 in Bitcoin.

"We are currently monitoring multiple bomb threats that have been sent electronically to various locations throughout the city," the New York City Police Department's counterterrorism unit tweeted. "These threats are also being reported to other locations nationwide & are NOT considered credible at this time."

Other law enforcement agencies also dismissed the threats, which were written in a choppy style reminiscent of the Nigerian prince email scam.

The Palm Beach County, Florida, sheriff's office and the Boise, Idaho, police said they had no reason to believe that threats made to locations in those areas were credible.

The FBI didn't immediately respond to a request for comment.

Across the country, some schools closed early and others were evacuated or placed on lockdown because of the hoax. Authorities said a threat emailed to a school in Troy, Missouri, about 55 miles (88 kilometers) northeast of St. Louis, was sent from Russia.

The bomb threats also prompted evacuations at city hall in Aurora, Illinois, the offices of the News & Observer in Raleigh, North Carolina, a suburban Atlanta courthouse and businesses in Detroit.

"Organizations nationwide, both public and private, have reported receiving emailed bomb threats today," Michigan State Police spokeswoman Shannon Banner said. "They are not targeted toward any one specific sector."

Penn State University notified students via a text alert about threats to a half-dozen buildings and an airport on its main campus in State College, Pennsylvania. In an update, the school said the threat appeared to be part of a "national hoax."

Officials at Columbine High School in Colorado were dealing Thursday with a bomb threat of a different sort. Students were being kept inside for the rest of the school day after someone called in a bomb threat against the school.

The Jefferson County, Colorado, Sheriff's Office said the caller claimed to have placed explosive devices in the school and to be hiding outside with a gun.

There is nothing to validate the threat was found at Columbine, where 12 students and a teacher were killed by two students in 1999, according to Sheriff's spokesman Mike Taplin.

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25 fatal school shootings since Columbine
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25 fatal school shootings since Columbine

April 20, 1999 - Columbine High School 

Photo Credit: Reuters

Nov. 20, 1999 - Deming Middle School, New Mexico 

(photo by Joe Raedle)

 February 29, 2000 - Buell Elementary School, Michigan 

Photo Credit: Reuters 

May 26, 2000 - Lake Worth Middle School, Florida 

Photo Credit: Reuters 

March 5, 2001 - Santana High School, California 

Photo Credit: REUTERS/Mike Blake MB/RCS

April 25, 2003 - Red Lion Area Junior High School, Pennsylvania

Photo Credit: Reuters 

September 24, 2003 - Rocori High School, Minnesota 

Photo Credit: Getty 

March 21, 2005. Red Lake High School, Minnesota

REUTERS/John Gress 

November 8, 2005 - Campbell County Comprehensive High School, Tennessee 

Photo Credit: Getty 

 Aug. 24, 2006 - Essex Elementary School, Vermont

 Photo Credit: Getty 

September 29, 2006 - Weston High School, Wisconsin 

(Photo by Darren Hauck/Getty Images)

October 2, 2006 - West Nickel Mines School, Pennsylvania 

(Photo credit should read STAN HONDA/AFP/Getty Images)

January 5, 2011 - Millard South High School, Nebraska 

Photo Credit: Getty

February 27, 2012 - Chardon High School, Ohio

REUTERS/Aaron Josefczyk 

December 14, 2012 - Sandy Hook Elementary, Connecticut 

 (Photo by Mario Tama/Getty Images)

October 21, 2013 - Sparks Middle School, Nevada. 

(Photo by David Calvert/Getty Images)

December 13, 2013 -  Arapahoe High School, Colorado

REUTERS/Rick Wilking 

June 10, 2014  - Reynolds High School, Oregon

(Photo by Natalie Behring/Getty Images)

October 24, 2014 -  Marysville-Pilchuck High School, Washington

REUTERS/Jason 

February 12, 2016 - Independence High School, Arizona 

Photo Credit: Getty 

September 28, 2016 - Townville Elementary, South Carolina

(Photo by Ricky Carioti/The Washington Post via Getty Images)

April 10, 2017 - North Park Elementary School, California 

 (Photo by David McNew/Getty Images)

September 13, 2017 - Freeman High School, Washington

Photo Credit: Getty 

January 23, 2018 - Marshall County High School, Kentucky

REUTERS/Harrison McClary

February 14, 2018 - Marjory Stoneman Douglas High School, Florida

(Photo by Joe Raedle/Getty Images)

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Two dozen other Colorado schools were also temporarily placed on lockout, meaning their doors were locked but classes continued normally, as the threat was investigated.

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