The American Federal Bureau of Investigation (FBI) is concerned about the possibility of an organized attack in the United States of America (USA), similar to the one that happened in a concert hall in Russia last month.
As reported by Reuters, FBI Director Christopher Wray plans to say this at a House of Representatives panel on Thursday.
"Looking back over my career in law enforcement, I would be hard-pressed to think of a time when there were so many threats to our public and national security at once. But that is the case as I sit here today," Wray is set to tell US lawmakers.
The March 22 attack on a concert hall in a suburb of Moscow killed at least 144 people, the deadliest in Russia in 20 years.
A branch of the Islamic State militant group claimed responsibility, but Russian President Vladimir Putin, without citing evidence, tried to blame Ukraine.
US officials are concerned about the possibility of an attack by an individual or a small group inspired by the war between Israel and Hamas in Gaza.
However, the FBI is increasingly concerned about a more coordinated attack after the concert massacre in Russia, Ray will say during his testimony.
Of increasing concern is "the potential for a coordinated attack here in the homeland, similar to the ISIS attack we saw at the Concert Hall in Russia a few weeks ago," he said.
Wray also plans to press lawmakers to restore the U.S. surveillance program, calling it an indispensable tool against America's adversaries.
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