A motorcyclist who was killed in a crash early Sunday morning in San Francisco’s Outer Sunset neighborhood has been identified by the Medical Examiner’s Office as Ryan Sitko.

Sitko, a 23-year-old San Francisco resident, was riding a motorcycle east on Judah Street at about 1:40 a.m. Sunday when he struck a center median at 39th Avenue and flipped over, police said.

He slid under a parked car and was pronounced dead at the scene by paramedics.

The cause of the crash remains under investigation, according to police.