A Japanese ambulance drives through Yokohama, Japan, May 8, 2020. (Akifumi Ishikawa/Stars and Stripes)

A U.S. Marine assigned to Camp Foster died Thursday evening when his motorcycle collided with a vehicle on an Okinawa roadway, according to Japanese police.

The 24-year-old Marine was southbound on Route 58 in the Oyama section of Ginowan city around 6:50 p.m. when he struck a vehicle turning right at a T-junction, a spokesman for Okinawa Prefectural Police told Stars and Stripes by phone Friday.

The Marine suffered a head injury and was confirmed dead at a local hospital at 7:29 p.m., the spokesman said.

The vehicle’s driver was not injured, he said.

A III Marine Expeditionary Force spokesman, Capt. Alejandro Arteaga, said the collision happened while the Marine was off duty.

“We are cooperating with local authorities in their investigation of the accident,” Arteaga said by email Friday. “Pending official notification of the Marine’s next of kin, no further details will be released at this time. We extend our heartfelt condolences to those impacted by this tragedy.”

A witness reported the accident to police, the police spokesman said. The crash’s cause is in under investigation.

Some government officials in Japan may speak to the media only on condition of anonymity.