A landslide at Bukit Tinggi has completely blocked both sides of the Karak expressway, leaving cars from both directions stranded.

The Malaysian Highway Authority in a Twitter posting said the incident occurred at KM52.4 of the expressway.

"All lanes are blocked, traffic at standstill. Postpone your journey," it said.

Bentong district police chief Mansor Mohd Nor confirmed the incident in a statement and said there were no reports of loss of life as yet.

8.19pm KL-KARAK : Tanah runtuh KM52.4 kesemua lorong terhalang kedua arah,trafik terhenti.Tangguhkan perjalanan anda pic.twitter.com/NAjdC495Zw

— LLM (@LLMinfotrafik) November 11, 2015

He urged travellers from Kuantan to exit at Bentong while those from Kuala Lumpur should exit at Genting Sempah.

He added tractors have been deployed since 8pm to clear the way.

According to Google Map, the traffic is backed up for up to 4km.

The data shows if drivers could move at all, it would take them more than two hours to cover the 4km distance.

The Fire and Rescue Services Department said in a statement later a total of five vehicles were hit by the landslide.

Nine people in the vehicles managed to escape before the rescue team arrived.

The vehicles affected were a Volkwagen Polo, a Mini Cooper, a Toyota Estima, a Perodua Myvi and a trailer.

Meanwhile Bernama reports police have denied that vehicles were buried in the landslide.