This picture taken on March 30, 2019 shows a worker manning a furnace during the nickel smelting process at an Indonesian mining company's smelting plant in Soroako, South Sulawesi. (PHOTO / AFP)

JAKARTA - An explosion at a smelting furnace in an industrial park in Morowali regency of Indonesia's Central Sulawesi province occurred on Sunday morning, killing 13 people and injuring dozens of others.

Rusmadi, head of the operation team of the Search and Rescue Office of Central Sulawesi Province, told Xinhua over the phone, "The death toll has reached 13, and dozens of other injured are being treated in hospitals."

ALSO READ: Boat carrying 28 people goes missing in eastern Indonesia

Rusmadi said the furnace that exploded was in a factory belonging to the PT Indonesia Tsingshan Stainless Steel (PT ITSS) in the industrial park.