Updated

Authorities say four people are dead and one other injured after their vehicle drove into the path of a freight train in Fresno.

California Highway Patrol officer Scott Jobinger says a car carrying five people drove onto the tracks and was broadsided by the train early Monday.

Jobinger said the Union Pacific train was traveling at about 40 miles an hour and was sounding its horns and had its headlights on around 1:45 a.m.

Those killed include two 20-year-olds, a 21-year old and an 18-year-old. Their names haven't been released.

Jobinger says a fifth passenger, 20-year-old Alexandra Sanchez of Fresno, was taken to the hospital with major injuries.

Investigators say it's not yet known why the collision occurred or whether drugs or alcohol were factors.