CONCORD (CBS SF) — A four-vehicle accident is blocking a left-hand lane on southbound state Highway 242 in Concord Wednesday morning, according to the California Highway Patrol.

The accident was first reported at 6:21 a.m. near Willow Pass, CHP officials said.

Fire officials were reported to be en route to the collision at 6:25 a.m., according to the CHP.

No estimate for when the lane will reopen was available.

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