According to the announcement, the UH-60 multi-purpose helicopter disappeared from the radar screen at 4:40 p.m. local time while it was about 18 kilometers northwest of Miyako Island in Okinawa Prefecture. A source from the Japanese Defense Ministry added that the missing helicopter was deployed at the Takayubaru base in Kumamoto Prefecture, southwest Japan, and was participating in surveillance activities.

PHUONG LINH