Two people have died following yesterday's attack on board a train in Switzerland.

A female victim (34) and the 27-year-old man who carried out the attack have died from their injuries.

The man attacked passengers with a knife and set a carriage on fire, near Salez in the east of the country.

Five other people, including a six-year-old child, were injured during the incident.

Two passengers remain in a serious condition, BBC reports.

Swiss police say they believe the attack was not terror-related.

Several dozen passengers were on the train when the incident began, police said, and a "massive contingent" of police, firefighters, rescue helicopters and paramedics attended the scene.