DALLAS » Gunshots have been fired near the Dallas Police Department headquarters, prompting a pursuit involving several police vehicles and culminating in a standoff.

WFAA-TV in Dallas says an unidentified suspect fired multiple gunshots near the Jack Evans Police Headquarters, south of downtown, just after midnight Saturday. Video posted by the Dallas-based television stations shows the suspect’s van ramming a police car amid gunfire, then speeding away.

Police pursued the vehicle and the chase culminated in a standoff on Interstate 45 at Interstate 20. I-45 was shut down and Dallas SWAT was deployed.

Dallas Police Maj. Max Geron tells WFAA that he was not aware of any injuries related to the shooting.