SAN DIEGO - A rollover crash prompted the closure of at least one lane on southbound Interstate 805 just south of El Cajon Boulevard.
The crash was reported just after 12:30 p.m., according to the California Highway Patrol.
At least one lane was blocked as a result of the crash, which involved at least one vehicle.
A Sig Alert was issued, and a witness told 10News traffic was backed up on southbound I-805 to Interstate 8.
At about 1:30 p.m., authorities lifted the Sig Alert and re-opened all affected lanes.
The cause of the crash remains under investigation.