A construction vessel spilled fuel oil at the site of a future Marine Corps airfield in northern Okinawa on Thursday, marking the third such incident this year, according to Japan’s coast guard.

Almost an entire barrel's worth of oil spilled into the Quarry Trail Metro Park's waterways over the weekend due to suspected dumping.

A construction vessel spilled oil at the site of a future Marine Corps airfield in northern Okinawa over the weekend.