At least eight people were killed and 20 others injured after a train crashed into a public bus at a rail crossing in Thailand’s capital of Bangkok on Saturday.

Thai news reported the crash involving a train, bus, cars and motorcycles occurred in the late afternoon near an airport rail link station in the central area.

Firefighters were dispatched as flames engulfed the bus and nearby vehicles. Rescue teams worked to pull injured victims from the wreckage of the charred bus after the flames were controlled, officials said.

The city's emergency services, Erawan Medical Centre, said at least eight people were killed and more than 20 people were injured.

Videos of the moment of the crash shared on social media showed that a line of vehicles had stopped at a railway crossing when a cargo train struck an orange bus at the front.

The impact also dragged several nearby vehicles along the tracks before the bus was engulfed in flames.

Several motorcycles and their riders were also seen being thrown onto the road after the collision.

The fire was brought under control, with crews cooling the area, venting gas and continuing to search for victims, they said. The cause of the accident is under investigation.