California Highway Patrol said a 47-year-old woman lost her life on Sunday trying to save victims of a vehicle crash on Interstate Highway 80 near Dixon after being hit by a truck.

Authorities said the initial car crash happened at about 2:40 a.m. on Sunday on westbound Highway 80 west of Dixon Avenue. Two cars collided, a black Mazda CX-5 and a silver Hyundai Elantra. The vehicles rested on the highway, blocking several lanes, with several cars stopping to help.

Good Samaritan Killed

Shortly after, 29-year-old San Francisco resident Mason Wessel who drove a red Toyota Tacoma, passed by the scene of the crash. He slammed into a silver Toyota Prius and a Mazda and its driver, who was outside the vehicle.

Wessel continued to drive his car and fatally hit the 47-year-old victim. Authorities did not yet reveal the identity of the woman.

The driver of the Mazda, identified as a 31-year-old man from Vallejo, suffered grave injuries. He was later taken to a hospital in Vacaville. The driver of the Prius suffered minor injuries and was transported to the same Vacaville hospital, KRON4 reported.

Officials arrested Wessel on suspicion of felony driving under the influence of alcohol. Authorities are urging the public for any information regarding the incident.