SINGAPORE - Tanks of gas were strewn at the junction of Upper Serangoon Road and Bartley Road on Sunday morning after a Mercedes collided with a lorry carrying LPG (liquefied petroleum gas) canisters.

The Singapore Civil Defence Force (SCDF) received a call about the incident at about 9.20m on Sunday.

A man and a woman were taken to Tan Tock Seng Hospital, SCDF said.

Lianhe Wanbao reported that the driver of the Mercedes, a 64-year-old woman, had chest pains, while the lorry driver broke his right leg.

The woman driver told Wanbao that she felt an impact to the back of the car as she was driving through the junction. LPG canisters then smashed into the car's rear window.

There were about 20 canisters scattered at the junction, Shin Min Daily News reported.

The lorry driver was trapped in his seat, but was then freed with the help of a colleague who happened to drive past, and some passers-by, Wan bao said.

SCDF dispatched one fire engine and two ambulances to the scene.

Civil Defence personnel were seen shifting the canisters to the pavement and spraying water on them.