Two Santa Rosa men died Monday and one was injured in an early morning car crash that ripped their car in half outside Santa Rosa, the CHP said.

Ivan Tapia-Solis, 21, was driving a Honda Civic north on Petaluma Hill Road and might have fallen asleep at the wheel when his car veered off the road during a turn about 2:45 a.m., Officer Jon Sloat said. Alcohol was not a factor, he added. It's not yet known how fast the car was moving.

As the road curved to the right near Hunter Lane, the Civic veered left, crossing the road and slamming into the grassy shoulder. The car spun sideways into a power pole, Sloat said. The impact split the Honda in half, sending the front of the car flying. The front half traveled more than 200 feet before it hit the guy wires from another power pole, Sloat said.

The impact threw Edgar Ortiz, 20, who was riding in the back seat, into the roadway. Ortiz died at the crash site, Sloat said. Tapia-Solis was conscious when the CHP arrived but died before being taken to the hospital.

The man riding in the front passenger seat, Jesus Cardenas, 19, of Santa Rosa, suffered a concussion and a broken collarbone. Medics rushed him to Santa Rosa Memorial Hospital.

(Staff Writer Elizabeth M. Cosin contributed to this report.)