A U.S. Navy sailor pleaded guilty Friday to raping a Japanese woman at a hotel in Okinawa Prefecture in March, at his first hearing at Naha District Court.

Justin Castellanos, 24, was indicted for raping the woman in her 40s at the hotel in the prefectural capital in the early hours of March 13. He took the woman, a tourist from Fukuoka Prefecture, into his room after finding her asleep in a corridor in the hotel.

During the court hearing, prosecutors said Castellanos decided to take advantage of the situation and rape her after trying and failing to wake her.