House staffer arrested after entering Capitol with a gun, police say

WASHINGTON – A staff member carrying a gun entered the U.S. Capitol Thursday and was later arrested, police said. 

An alert went out to Capitol complex staff in the Longworth building around 7:50am about "a security threat inside the building" and warning occupants to "move inside your office or the nearest office." Minutes later, the U.S. Capitol Police said the threat was cleared.

Jeffrey Allsbrooks, 57, is a staff member with the House Chief Administrative Office, USCP said in a statement, and was "tracked down four minutes later" after officers "spotted the image of a handgun in a bag on the x-ray screen."

Allsbrooks told officers he forgot the gun was in the bag.

More:130 officers have left Capitol Police since Jan. 6 insurrection, watchdog tells Senate hearing

Prep for the polls: See who is running for president and compare where they stand on key issues in our Voter Guide

The USCP is charging him with carrying a pistol without a license, and said the case remains under investigation to look "into what happened before, during and after those four minutes."

The security alert came just hours before President Joe Biden was scheduled to arrive at the Capitol for a ceremony honoring the late Sen. Bob Dole, R-Kans., who is lying in state in the Capitol Rotunda. 

More:Bob Dole, former senator and presidential candidate, will lie in state at the US Capitol Rotunda

The incident also comes at the end of a year that saw several threats and violent incidents at the Capitol. In January, a mob of pro-Trump supporters swarmed the Capitol in an attempt to stop the counting of electoral ballots that affirmed Joe Biden had won the presidency. Several people died.

Months later, a man rammed a car into a security barrier near the Capitol, killing an USCP officer. There have also been several bomb threats. 

More:Man in custody after 'suspicious' vehicle found outside Supreme Court