A U.S. airman was arrested on suspicion of rear-ending another vehicle while driving drunk on the Okinawa Expressway near Camp Foster, Okinawa, seen here on Feb. 11, 2025. (Keishi Koja/Stars and Stripes)

A U.S. airman was arrested Monday on suspicion of driving under the influence and rear-ending another vehicle on the Okinawa Expressway, injuring the driver, according to Japanese police.

The 20-year-old airman, assigned to Kadena Air Base, was driving a passenger vehicle when he struck another vehicle from behind in the passing lane at 9:53 p.m. in Kitanakagusuku village, near Camp Foster, an Okinawa Prefectural Police spokesman said Tuesday by phone.

The spokesman did not know the direction the airman was traveling or his speed at the time of the crash.

The other driver was taken to a hospital with non-life-threatening injuries, the spokesman said. He declined to provide additional details.

A breath test measured the airman’s blood-alcohol content at twice Japan’s legal limit of 0.03%, the spokesman said. By comparison, the legal limit for driving under the influence in all 50 U.S. states is 0.08%.

The airman’s case had not yet been forwarded to the Naha Public Prosecutors Office, the spokesman said. He declined to say where the airman was being held.

Stars and Stripes is withholding the airman’s name until charges are filed.

The 18th Wing at Kadena did not immediately respond to questions emailed Tuesday.