A Manhattan Beach teenager who died two days after he struck a bridge on the 405 Freeway while standing up on a double-decker bus was identified on Sunday as 16-year-old Mason Zisette, according to the Los Angeles County Department of Coroner.
The incident occurred Thursday night on the southbound 405 Freeway at El Segundo Boulevard in the Hawthorne area, California Highway Patrol Officer Tony Polizzi said.
The teen was standing up on the "open-roof" section of the bus when it drove under a freeway bridge, the Los Angeles Times reported.
Officers initially responded to the scene after a report of single-vehicle collision involving a "party bus" and a person down on the right shoulder of the freeway, according to Polizzi.
When they arrived, officers discovered a male juvenile suffering from major injuries, Polizzi said.
He was taken to a local hospital and was initially reported to be in stable condition.
The teen, identified as Zisette, later died, according to Lt. Joe Bale with the coroner's office.
Zisette was a varsity tennis player at Mira Costa High School in Manhattan Beach, according to the school's website.
No further information was available.
KTLA's Goeff Peters contributed to this report.