Marine Sgt. Hayden Steingold was attached to the 5th Air Naval Gunfire Liaison Company, 3rd Marine Expeditionary Force Information Group at Camp Foster, Okinawa. (Manuel Serrano/U.S. Marine Corps)

A U.S. soldier assigned to Kadena Air Base died Saturday morning when his vehicle crashed into trees alongside a highway on Okinawa, according to Japanese police.

Spc. Ro David Ganzon’s vehicle flipped along Route 75 in Uruma city, an Okinawa Prefectural Police spokesman told Stars and Stripes on Monday.

Ganzon, 22, was with the 1st Battalion, 1st Air Defense Artillery Regiment, 38th Air Defense Artillery Brigade, according to an email Tuesday from U.S. Army Japan spokesman Maj. Devon Thomas.

The soldier’s car crossed the centerline, crashed and flipped onto its side at 4:08 a.m., the prefectural police spokesman said.

A Japanese doctor declared Ganzon dead at the scene, an Uruma police spokesman said by phone Monday.

The accident happened on a long, downhill stretch that curves left by the Tengan Pier near Camp Courtney, the city police spokesman said. The accident is under investigation.

Ganzon’s death followed a motorcycle collision Thursday on Okinawa that killed Marine Sgt. Hayden Steingold, 24, assigned to Camp Foster.

Steingold, of Greenacres, Fla., was attached to the 5th Air Naval Gunfire Liaison Company, 3rd Marine Expeditionary Force Information Group, Capt. Alejandro Arteaga, a spokesman for III Marine Expeditionary Force, said by email Monday.

Steingold was southbound on Route 58 in Ginowan city around 6:50 p.m. when he collided with another vehicle turning right at a T-junction, a prefectural police spokesman said by phone Friday. The other driver was not injured.

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