A small cylindrical object fell onto the roof of a nursery school in Okinawa Prefecture as a U.S. military plane flew overhead on Thursday, local officials said.
There were no reports of injuries from the incident, which occurred at around 10:20 a.m. in the city of Ginowan — home to a U.S. Marine Corps air base involved in a contentious relocation plan. The nursery school is located about 300 meters from the base.
Okinawa Gov. Takeshi Onaga, a staunch opponent of the plan to relocate the base within his prefecture, said it would be "outrageous" if the object, measuring about 15 centimeters, indeed came from a U.S. military plane. Local officials were seeking to identify the object.