Prosecutors, not police, decide formal charges under Japan's criminal justice system. (Akifumi Ishikawa/Stars and Stripes)

Japanese police arrested a U.S. airman over the weekend on suspicion of breaking into a liquor store on Okinawa, a police spokesman said Monday.

Police in Naha say Airman 1st Class Anthony Orlando Osuna, 23, broke into the store in the city’s Makishi area between 7:39 a.m. and 7:50 a.m. Sunday, a Naha police spokesman said by phone. Some Japanese officials are required to speak to the media on condition of anonymity.

After breaking the back door of the store, Osuna knocked down shelves inside, the spokesman said.

The airman fled after an alarm went off and a security guard arrived, the spokesman said. He was arrested on suspicion of trespassing at 9:49 a.m. by police responding to a call from the security company.

Osuna’s blood alcohol level, tested after his arrest, was three times Japan’s legal driving limit of 0.03%, the spokesman said. By contrast, the legal limit across the United States is set at 0.08%.

Osuna was still in custody Monday, the spokesman said.

The 18th Wing at Kadena Air Base is aware of the incident, cooperating with local authorities and providing support to the airman, according to an unsigned email from the public affairs office Monday.

“All Airmen, whether permanent party or deployed, are expected to uphold the highest standards of conduct in and out of the uniform, and the U.S. Air Force will hold anyone accountable who commits criminal acts under the applicable laws,” the message said.