Update, 2:05 p.m.
By about 2 p.m., the crash was no longer listed as an active incident by the California Highway Patrol.
A two-car crash on Highway 1 and Highland Drive has closed both southbound lanes of Highway 1, Caltrans said.
The crash happened about 11 a.m. and involved a white pickup and a blue pickup, according to the California Highway Patrol. The crash was initially reported as a head-on collision. Minor injuries are reported.
Caltrans said both southbound lanes were closed at about noon.
Motorists should expect major delays and should use Highland Drive as a detour, Caltrans said.