An armed suspect who tried to enter the FBI's Cincinnati office is dead after standoff with authorities, officials say

An armed man was fatally shot by law enforcement after he attempted to break into the FBI's Cincinnati office and then fled the scene on Thursday morning, authorities said.

As troopers pursued his fleeing car on an interstate, the suspect fired shots before pulling off, abandoning his car on a rural road and engaging in an hourslong standoff with police, according an Ohio Highway Patrol spokesperson.

Law enforcement officers shot and killed the suspect at about 3:45 p.m. after he raised his gun toward police, Lt. Nathan Dennis said.

"He died of his injuries at the scene and everything remains under investigation at this time," Dennis said at a press conference.

Authorities have not publicly identified the suspect, but the BBC reported that an official, speaking on the condition of anonymity to discuss the ongoing investigation, identified him as 42-year-old Ricky Shiffer.

The official said Shiffer was believed to be in Washington in the days leading up to the Jan. 6 attack of the Capitol, and may have been present at the insurrection.

Shiffer was not charged with any crimes in connection with the Jan.

 6 attack, the official said. 

The FBI has seen an increase in online threats since Monday, when its agents searched former President Donald Trump's Florida estate as part of an investigation into documents removed from the White House when Trump left office in January 2021.