A thunderous crush of soil and debris killed 21 people at a campground in Malaysia on Friday, and rescuers dug through the mud in the night for another 12 who were feared buried in the landslide.

More than 90 people were sleeping on an organic farm when the dirt tumbled from a road about 30 meters (100 feet) above the site and covered about 1 hectare (3 acres). Two of the dead were found locked in an embrace, according to the state fire department chief.

Authorities told local media that the landowners did not have a license to run a campground. At least seven people were hospitalized and dozens more were rescued unharmed, said district police chief Suffian Abdullah.

Leong Jim Meng told the New Straits Times English-language daily that he and his family were awakened by a loud bang and felt the earth move at the campsite in Batang Kali, around 50 kilometers (30 miles) north of the capital of Kuala Lumpur.