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Felix Adamo / The Californian

Three of four trucks involved in an afternoon accident still clog some of the southbound Hwy 99 lanes at the Lerdo Hwy overpass. According to CHP, three trucks were stopped do to congestion caused by road construction in the area when the fourth truck hit the stopped trucks at about 45 mph causing a chain reaction. Only minor injuries were reported and no one was taken to the hospital.

A traffic collision involving several big rigs forced the closure of southbound Highway 99 at Lerdo Highway Tuesday evening, according to the California Highway Patrol's incident website.

At least four semis were reported involved at the scene, including one with a driver trapped inside a rig, and a minor injury.

A call of a truck on its side was reported to the CHP at about 5:40 p.m. Another message said one of the trucks' unspecified load had been spilled.

Multiple emergency units were on the scene as of 6 p.m.