Cameron Highlands district police chief DSP Azri Ramli said no casualties or property damage were reported in the 2 am incident.
"The landslide has obstructed both lanes and cleanup efforts are currently underway," he said when contacted by Bernama today.
The District Disaster Management Secretariat reported that the Malaysian Civil Defence Force is at the scene to monitor the situation and provide assistance.
It said motorists can use alternative routes via Jalan Sungai Koyan, Lipis and Jalan Tapah to reach Cameron Highlands.
-- BERNAMA