Thomas Chanquet, 24, stationed at the U.S. Marine Corps' Futenma Air Station in Ginowan in Okinawa prefecture, was arrested for allegedly trespassed by entering without permission a fourth-floor apartment of a building in Naha, Kyodo reported Sunday.
An acquaintance of the person who lived in the apartment, who was out at the time, saw Chanquet enter a bedroom and sleep there.
The resident was notified and called the police.
Naha police said Chanquet was drunk.
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