SINGAPORE - Two motorcyclists and a pillion rider were taken to hospital after several motorcycles were involved in an accident with a bus in Pasir Panjang on Thursday (July 20) morning.

The accident occurred around 11am at Pasir Panjang Road, near the Labrador Outdoor Adventure Centre.

Pictures and videos posted on citizen journalism site Stomp show one motorcycle pinned under the front of an SBS Transit bus.

A photo posted on Facebook shows two other motorcycles parked by the road, and several men sitting on the grass.

The Singapore Civil Defence Force told The Straits Times that it was alerted around 11am to an accident involving a bus and a few motorcycles along Pasir Panjang Road.

"SCDF dispatched three ambulances and took three people to the National University Hospital," said the spokesman.

The police said they were alerted to an accident involving a bus and four motorcycles along Pasir Panjang Road towards West Coast Road at 10.58am. Three men were all conscious when taken to NUH, they said.

SBS Transit's senior vice-president for corporate communications Tammy Tan told The Straits Times that three men have now been discharged.

"We were at the hospital earlier today and were able to establish contact with one of them and will continue to reach out to the other two," she said. "All three of them have already been discharged from the hospital and we will render assistance to them as best we can."

"We apologise to affected commuters and road users for the inconvenience caused," she added.

SBS Transit is assisting the police with their investigations.