Northbound Interstate 805 closed Friday morning for police activity.
Northbound Interstate 805 has been reopened after being closed for nearly six hours on Friday, according to officials.
The interstate was closed at 8:30 a.m. at the state Route 54 connector between Chula Vista and National City. A SigAlert warned drivers to avoid the area.
Traffic was diverted to SR-54 while the Plaza and Sweetwater onramps were closed.