SINGAPORE, July 20 -- All three lanes of the Singapore to Malaysia-bound carriageway on the Tuas Second Link will be closed from 5.00am to 2.00pm on Wednesday, July 23, for a cross-border chemical spill emergency response exercise.

Motorists heading to Malaysia will be diverted to a lane on the opposite carriageway and are advised to plan their journeys in advance or use the Woodlands Checkpoint instead.

The exercise, held under the Malaysia-Singapore Joint Committee on the Environment (MSJCE), is a joint initiative by Singapore's National Environment Agency (NEA), Malaysia's Department of Environment (DOE), and other agencies.

It aims to test emergency response procedures to a simulated multi-vehicle collision involving trucks carryin...