Authorities say the FBI headquarters in Washington, D.C., was briefly evacuated because of a small electrical fire in the basement.
No injuries were reported, but two streets were closed while authorities investigated.
FBI spokesman Richard Kolko says no criminal activity was suspected and that everything was “under control” by late afternoon.
D.C. fire department spokesman Alan Etter says there appeared to have been an electrical fire in a utility room underneath the building.
Etter said officials received a call from inside the building around 4:15 p.m. about a loud, explosion-like noise and smoke coming from the ventilation system.
The few people working on the holiday had to leave the building but were later allowed to return.