SINGAPORE - Police are investigating the case of an SMRT articulated bus driver who swerved across four lanes at a busy traffic junction and crashed into a stationary goods van.

Two people were injured in the freak accident, which happened on the afternoon of Jan 17 between Yishun Avenue 1 and 2, and was captured by a car video camera.

In the clip, the goods van had come to a stop in the extreme right lane of the junction, waiting to turn. A minute later, an off-service SMRT "bendy" bus in the extreme left lane on the same five-lane road swerved sharply, miraculously missing several moving vehicles before crashing into the van and uprooting the traffic signal lights.

It also hit a truck waiting alongside the van.

The impact sent the van careening up the centre median, and almost onto the path of opposite traffic.

In the clip, the bus looked like it had brushed against a road curb on the left before swerving. The road looked wet.

Police said the incident happened at 4.07pm, and a man and a woman - both 48 - were taken to Khoo Teck Puat Hospital nearby.

The police added that the bus driver was a 51-year-old Singaporean male, who is helping with investigations.

SMRT spokesman Patrick Nathan said: "We apologise for the incident. The bus captain has been taken off driving duties. We have reached out to the injured and will continue to provide assistance."