KUALA LUMPUR, Sept. 18 -- A crash involving two box vans that overturned on their sides has completely blocked all northbound lanes of the North-South Expressway (NSE) at KM257.7, along the stretch between the Menora Tunnel and Kuala Kangsar in Perak.

The Malaysian Highway Authority (LLM) reported that northbound traffic ground to a complete standstill following the incident, triggering a 1.7km congestion queue as of 9.18am.

It is unclear if there are any casualties from the incident.

Emergency response teams and recovery machinery are currently on-site working to clear the obstructed lanes.

Northbound motorists are advised to anticipate significant delays, drive with heightened caution when approaching the area, or seek alternative r...