OAKLAND (CBS SF) — An overturned crash with injuries on westbound Interstate Highway 580 near the busy MacArthur Maze Wednesday brought the morning commute to a near halt heading into San Francisco, authorities said.

According to the California Highway Patrol, the multi-vehicle crash took place at 8:36 a.m. on the ramp connecting westbound 580 to westbound Interstate 80 in Oakland and was blocking four lanes.

There were injuries reported but they were characterized as minor by the CHP. All lanes were reopened by 9:50 a.m.