The arrests of three people in connection with an alleged plot to detonate backpack bombs on New York City trains has prompted counterterrorism officials to warn mass-transit systems around the nation to step up patrols.
Metro has scheduled an afternoon news conference to address the concerns. ABC 7 News will bring you the latest information as it becomes available.
New York City’s transit agency says it has increased police presence at “key locations” in light of a continuing terrorism probe.
The Metropolitan Transportation Authority says there’s no credible threat to the city’s subway system and commuter trains. But extra officers with helmets and bulletproof vests are at spots like Grand Central Terminal in midtown Manhattan.
Two law enforcement officials speaking on condition of anonymity because they were not authorized to discuss details of the investigation told The Associated Press late Monday that more than a half-dozen individuals were being scrutinized in the alleged plot.
In a statement, the FBI says that “several individuals in the United States, Pakistan and elsewhere” are being investigated.
Investigators say Najibullah Zazi, a 24-year-old Afghanistan-born immigrant who is a shuttle van driver at the Denver airport, played a direct role in the terror plot that unraveled after an overnight 1,600-mile trip from Denver to New York City around the anniversary of the Sept. 11 attacks. He made his first court appearance Monday and remained behind bars.
Zazi and two other defendants have not been charged with any terrorism counts, only the relatively minor offense of lying to the government. But the case could grow to include more serious charges as the investigation proceeds.
Backpacks and cell phones were seized last week from apartments in Queens where Zazi visited.
Zazi has publicly denied being involved in a terror plot, and defense lawyer Arthur Folsom dismissed as “rumor” any notion that his client played a crucial role.
Publicly, law enforcement officials have repeatedly said they are unaware of a specific time or target for any attacks. Privately, officials speaking on condition of anonymity because they were not authorized to discuss the case said investigators have worried most about the possible use of backpack bombs on New York City trains, similar to attacks carried out in London in 2005 and Madrid in 2004.
Backpack bombs ripped apart four commuter trains and killed 191 people in Madrid on March 11, 2004. On July 7 the next year, bombing attacks in London killed 52 subway and bus commuters.
In a bulletin issued Friday, the FBI and Homeland Security Department warned that improvised explosive devices are the most common tactic to blow up railroads and other mass transit systems overseas. And they noted incidents in which bombs were made with peroxide.