A motorcyclist has died after broadsiding an SUV in Imperial Beach Monday evening.

San Diego County Sheriff's investigators say at 6:10 p.m., the 35-year-old motorcyclist was driving east on Palm Avenue faster than the 35 mph speed limit.

He crashed into the front passenger door of an SUV that was turning left onto 10th Street, flinging debris 30 feet in every direction from the point of impact.

Taco shop owner Rosaura Ramos, who used to be an emergency medical technician, saw the crash and rushed to the motorcyclist's side.

"I go and leave my work, and I go to try and help him," she said. "I just check his vitals. It's very, very slow. He tried to move and I said don't move."

The motorcyclist was pronounced dead shortly after. His identity will be released once his family is notified.

The female SUV driver had minor injuries, which were treated at the scene.

While witnesses say the motorcyclist was trying to beat the SUV to the turn, investigators say they cannot be certain who is at fault yet.

Eastbound Palm Avenue was closed between 9th and 11th streets while the sheriff's traffic division investigated the crash.