A handgun, radio and badge were stolen Monday afternoon from the private vehicle of a U.S. Secret Service agent who had parked near the agency’s downtown Washington headquarters.

The theft occurred about 4 p.m. in the 1000 block of G Street NW, two blocks from the Metro Center station and near the Martin Luther King Jr. Memorial Library.

A D.C. police report says someone “unzipped” a back window — the narrative does not describe the vehicle, but it apparently had a soft top — and took a black Sig Sauer handgun, a department radio, handcuffs, a computer flash drive and a badge, No. 1266.

The theft was first reported by CNN, which said the agent is assigned to the Presidential Protective Division. Robert Hoback, a spokesman for the Secret Service, confirmed what was in the CNN report but offered no other comment. Officials would not discuss agency rules regarding the handling of firearms and other sensitive items.

According to the police report, the agent was returning to his vehicle when he saw a man reach into it, but he told police that he didn’t see the man take anything. He later discovered items missing.

D.C. police report 159 theft-from-auto cases this year in the patrol area that serves the street on which the Secret Service agent parked. That is down from 215 cases at this time in 2014.

Monday’s theft came amid a string of embarrassing or tragic incidents for the Secret Service, including a case in which a member of the uniformed division was charged in November with soliciting a minor for sex while working at the White House. This month, a Secret Service officer was shot and killed, possibly during a robbery. He had been suspended by the agency because he was arrested in a domestic incident.

And before those incidents, a congressional investigation concluded that the Secret Service was an “agency in crisis” following a series of security breaches, including trespassers at the White House.