Those with serious injuries have been treated in hospitals and field hospitals set up after the shallow under-land quake struck Mamuju city and Majene district, the National Disaster Management Agency's Spokesman Raditya Jati said.

As many as 189 people suffered serious injuries in Mamuju and 639 got minor wounds in Majene, the spokesman disclosed.

"Now, the patients who were treated in the impacted-hospitals have been removed to the field hospitals," he told Xinhua in a text message.

The jolts have destroyed the Mitra Manakarra Hospital in Mamuju, according to Syarifuddin. S., an official of the provincial social office.

The spokesman said that the displaced persons have taken shelters in 10 evacuation centers, and emergency relief aids have been sent to the affected people.

The risk assessment and evacuation of the victims are underway, according to him.