Updated

In a Tuesday morning statement, the Metropolitan Police Department said that the U.S. Capitol Police had taken over the investigation. 

"The Metropolitan Police Department responded to a report of an armed carjacking Monday evening at approximately 9:32 p.m. at the intersection of New Jersey and K Street, Southeast. The victim was identified as a member of Congress and the United States Capitol Police took over the investigation. MPD is assisting Capitol Police’s Criminal Investigative Division," the statement read. 

House Democratic Caucus Chair Pete Aguilar, D-Calif., was spotted at the location of the crime with Cuellar as Capitol police were processing the scene and taking a statement from Cuellar.

"DC’s Metropolitan Police Department is investigating an armed carjacking that happened around 9:30 p.m. in DC's Navy Yard neighborhood," Capitol police said in a statement late Monday night. "The victim has been identified as a Member of Congress, so the USCP has investigators working with MPD on this case. Injuries were not reported. Detectives are working to track down the suspect." 

KENTUCKY SEN. RAND PAUL SAYS STAFF MEMBER WAS ‘BRUTALLY ATTACKED’

Rep. Henry Cuellar

U.S. Rep. Henry Cuellar, D-Texas, was carjacked at gunpoint Monday night in Washington, D.C. (AP Photo/Mariam Zuhaib)

House Democratic Caucus Chair Pete Aguilar, D-Calif., was spotted at the location of the crime with Cuellar as Capitol police were processing the scene and taking a statement from Cuellar.

"DC’s Metropolitan Police Department is investigating an armed carjacking that happened around 9:30 p.m. in DC's Navy Yard neighborhood," Capitol police said in a statement. "The victim has been identified as a Member of Congress, so the USCP has investigators working with MPD on this case. Injuries were not reported. Detectives are working to track down the suspects."

DEM REP. ANGIE CRAIG ‘ASSAULTED’ IN DC ELEVATOR

Police vehicles on street in Washington DC

The scene near the Navy Yard neighborhood in Washington, D.C., after U.S. Rep. Henry Cuellar, D-Texas, was carjacked at gunpoint by three men Monday night. (Fox News/Tyler Olson)

Monday's incident made Cuellar the second Democrat in Congress to become a victim of crime in the nation's capital this year. In February, Minnesota Rep. Angie Craig was attacked in an elevator at her apartment building before fighting off her attacker.

The carjacking also comes just two weeks after law enforcement officials held an open forum on Capitol Hill for members of Congress and Capitol Hill staff to discuss public safety in the surrounding neighborhoods.

Police, people on Washington DC street after carjacking

Cuellar is the second Democrat in Congress to be a victim of a crime in Washington, D.C., this year. Multiple staffers have also been attacked in the nation's capital in recent months. (Fox News/Tyler Olson)

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Multiple congressional staffers have been victims of crime in the district this year, including one of U.S. Rep. Brad Finstad's staff members who was brutally attacked leaving the Congressional baseball game in June, and a member of Sen. Rand Paul's staff who was attacked in broad daylight in March.

This is a breaking news story. Check back for updates.