A truck flipped over on an expressway in Malaysia after its driver allegedly fell asleep.

Dashcam footage shows the lorry swerving wildly towards the middle of the highway in the city of Shah Alam in Selangor state on September 23 before skidding across the road.

Miraculously, none of the motorists involved suffered any serious injuries in the crash on the New Klang Valley Expressway.

Shah Alam Police Chief Superintendent Ramsay Anak Embol said: ‘Preliminary investigation found that the 33-year-old lorry driver lost control of his vehicle because he was believed to have fallen asleep.

‘A few minutes later, a motorist coming from the same direction failed to avoid the lorry and crashed into it, which was not in the recording. However, the man was only slightly injured.’

A urine test found that the driver tested positive for methamphetamine, a recreational drug that makes its users experience euphoria. He has been taken to court for violating Malaysia’s Dangerous Drugs Act of 1952.

Ramsay added: ‘As for traffic offences, the case is being investigated under Section 45 of the Road Transport Act 1987 for driving a vehicle under the influence of drugs.’

Long-haul truckers in Southeast Asia are known to take methamphetamine pills, known locally as Yabba, as a stimulant to help them stay awake during long hours on the road.