Jakarta , Indonesia ( CNN ) -- An explosion at an Indonesian navy ammunition warehouse near Jakarta killed one person and injured dozens of others , authorities said . The blast took place Wednesday morning at the warehouse on an island off the Tanjung Priok port complex in Jakarta , the Indonesian capital , the military said . Most of the 87 people injured were responding to the fire , said military spokesman Rear Adm. Iskandar Situmpol . Situmpol said the possible cause of the explosion was an electrical short circuit that first caused a fire .
The explosion took place on an island off a Jakarta port complex . Official : The explosion was caused by an electrical short circuit .