An investigation into shots fired at three parked cars on Constitution Avenue in Northwest D.C. closed down a portion of the busy roadway for seven hours early Friday.

Constitution Avenue near 16th Street reopened just before 8:30 a.m.

U.S. Park Police detained two adults and a juvenile in connection with the incident not far from the White House.

• Listen to WTOP online and on the radio at 103.5 FM or 107.7 FM.
• Current traffic conditions

The police said reports of the gun shots near 1600 Constitution Avenue, NW came in at 1:15 a.m.

No one was hurt. The vehicles were not occupied.

The department says there is no ongoing threat to the public.

Officers found a gun a the scene and another one with the juvenile.

Anyone with information regarding this incident is asked to contact the USPP at 202-379-4877 or USPP_tipline@nps.gov.