Overturned Big Rig Shuts Down Highway 99 Near Delano

A big rig crash Wednesday morning has shut down northbound Highway 99 near Delano.

The accident happened around 4 a.m. at Avenue 24, the California Highway Patrol said.

The big rig was carrying hazardous material, but officials do not know what material was being transported.

Highway patrol officers are detouring traffic, but there is a major backup.