An explosion went off Saturday in an undercover police proof warehouse comprising munitions dating from World War Two, injuring one officer and prompting the evacuation of nearby residents, authorities said.
The warehouse is at the Mobile Police Brigade headquarters at Srondol, near the town of Semarang in Central Java province.
The explosion occurred at 7 a.m. (0000 GMT), provincial police chief A. Daniel informed Kompas TV, including that taxpayers discovered the explosives stored at the warehouse.
The cause of the blast has been investigated, and firefighters were set up to handle a blaze it triggered.
Japan inhabited Indonesia, that was in the time that the Dutch East Indies, from 1942 until 1945 during World War Two.