SINGAPORE - A school bus allegedly went out of control and overturned along a Central Expressway slip road towards Seletar West Link at around 8.10am on Monday (Feb 7).

The minibus was taking students to XCL World Academy, an international school in Yishun, reported Chinese-language newspaper Shin Min Daily News.

The Singapore Civil Defence Force said two people were taken to Sengkang General Hospital, and another seven to KK Women's and Children's Hospital (KKH).

The nine people, aged between six and 60, were conscious at the time, the police said.

The seven taken to KKH are students from the school, while the other two are believed to be a female driver and a bus attendant.

An XCL World Academy spokesman told The Straits Times that no one on the bus was seriously injured, including the seven students who were taken to hospital. 

The spokesman added that the school was helping the authorities with investigations and providing support to the children involved. 

Photos of the accident show the bus lying on its side with its windscreen shattered and roof dented. Papers were scattered on the road.

A man who wanted to be known only as Mr Zhang, 42, told Shin Min that the driver and the students had minor cuts and bruises on their heads, faces and limbs.

"The children were trembling with fear," he added.

He said some passers-by helped the students out of the bus and took them to the side of the road.

They also placed toilet paper and a military uniform on top of oil that had leaked out of the vehicle, to prevent it from igniting.

Posting on its Twitter feed for traffic news, the Land Transport Authority said the Seletar West Link exit was closed at 9.55am. The Straits Times understands it was reopened about 30 minutes later.

Police investigations are ongoing.