At least 19 people including children have been killed after a landslide hit a holiday campsite in Malaysia's Selangor state.

Families were sleeping in their tents when the landslide happened around 03:00 Friday (19:00 GMT Thursday) at a farm stay in Batang Kali township.

Hundreds of rescuers spent Friday digging through mud to find survivors. The farm's managers said at least 30 children and 51 adults were registered for an overnight stay.

Local media reported that Malaysian authorities said fourteen people were still missing, and that about 700 officials are involved in the search and rescue.

The Malaysian fire department said at lest four children were among the dead. More than 20 primary school teachers and their family members were there, according to a New Straits Times report.

Local Government Development Minister Nga Kor Ming reported that the camping site had been operating illegally.

Mr Nga also said he ordered all "high-risk" camping sites - those located along rivers, waterfalls and hillsides - across the country to be closed for seven days with immediate effect.