Photo provided by Carl Mueller

A four-car collision that occurred around 2:38 p.m. has blocked all Southbound lanes of U.S. Highway 101 north of Redcrest.

Three passengers were injured, including a 68-year-old man who was taken away by ambulance with severe lower-back pain.

Several emergency units were dispatched. However, the first units to arrive on scene canceled all additional aid as there were sufficient resources on scene. California Highway Patrol is currently assisting to relieve traffic in the area.