A man set a train carriage in Switzerland on fire using a flammable liquid and also stabbed passengers Saturday, injuring six people, including a six-year-old child, police said.

The man, a 27-year-old Swiss citizen, carried out the attack on a train travelling in Switzerland's far east, along its border with Liechtenstein, and was also injured, regional police in St Gallen said in a statement, AFP reported.It said the injured were taken to various hospitals with burn and stab wounds, and that the assailant was also injured in the incident and transported to hospital. The attack occurred at 2:20 p.m. (1220 GMT) on a train travelling between Buchs and Sennwald in the canton of St. Gallen, the police statement said.Apart from the child, a girl and a boy, both 17, two women aged 34 and 43, and a man aged 50 were hurt.

Contacted by AFP, police said the motive for the attack was unknown.

The victims included two men aged 17 and 50, and three women aged 17, 34 and 43. Dozens of people were on the train at the time of the attack, the police statement said.

A massive contingent of rescue workers rushed to the scene, including police, firefighters, ambulances and three rescue helicopters.

The Salez station remains closed, and police said replacement buses had been set up.

Saint Gallen prosecutors have opened a criminal investigation into the attack.

Police said the train had suffered damages upwards of 100,000 Swiss francs ($103,000, 92,000 euros).