Traffic is backing up in both directions on state Highway 242 in Concord Tuesday night due to a big rig that overturned after striking the center divide, according to the California Highway Patrol.
Officials said at least one person has died in the accident.
The incident was reported at 8:14 p.m. after a northbound semi truck collided with the center divide just south of Olivera Road, spewing debris into both northbound and southbound lanes of traffic, according to the CHP.
A Sig-alert was issued at 8:28 p.m. and at this time there is no estimate for when the roadway will reopen. Traffic is currently flowing in both directions, but only in one right-hand lane on both sides of the highway, according to the CHP.
No other information was immediately available.