Naha, Okinawa: A 20-year-old US Marine has been arrested by Japanese police following the death of a 39-year-old woman at a hotel in Naha, Okinawa, in a case being investigated as an alleged robbery-murder.

Police identified the suspect as Devin Jacob Ballard, who is stationed at the US Marine Corps Air Station Futenma in Okinawa. Investigators allege that the woman was killed inside a hotel room and that her wallet and backpack were taken. Ballard has denied the allegations.

According to investigators, the woman entered the hotel with the suspect during the early hours of Saturday. Hotel staff later discovered her unresponsive after the room was not vacated at the expected time. Emergency personnel subsequently confirmed her death.

Police reviewed security-camera footage as they investigated the circumstances surrounding the death. The footage reportedly showed a man entering the hotel with the woman and later leaving the building alone with belongings believed to have belonged to her.

The suspect was later located in an entertainment district in Okinawa. Police questioned him and subsequently arrested him in connection with the case.

Investigators are continuing to examine the circumstances of the woman’s death, including the precise cause of death and the relationship between the two people. Police are also examining evidence recovered during the investigation.

The case has attracted particular attention because the suspect is a member of the US military stationed in Okinawa. The Japanese government has formally raised the incident with the United States and requested full cooperation with the investigation.

Japan’s Prime Minister Sanae Takaichi expressed strong concern over the incident and called for cooperation from the US side. The US Embassy and US Marine Corps have also expressed condolences to the victim’s family and said they are cooperating with Japanese authorities.

The incident has renewed attention on the long-standing sensitivity surrounding the large US military presence in Okinawa. The prefecture hosts a substantial concentration of US military facilities and personnel, and previous criminal incidents involving service members have generated public concern.

For local authorities, the immediate priority remains establishing the facts of the case and determining whether the suspect should face formal prosecution.

The investigation is continuing, and the allegations against the arrested Marine have not been proven in court.