Authorities have evacuated a small town in northwestern Minnesota after a freight train collided with a propane truck that caught on fire.

State Patrol Sgt. Jesse Grabow says it happened around 12:25 p.m. Thursday in Callaway. The town of about 230 was evacuated as a precaution. The evacuation was to remain in effect until at least noon Friday.

The state Department of Public Safety says the propane is being vented and burned off. None of the affected cars carried hazardous materials and none caught fire.

Canadian Pacific says the crash derailed seven empty cars and the locomotive on the 82-car train. Railroad spokesman Andy Cummings says two crew members were hurt. DPS says they were taken to a hospital with non-life-threatening injuries.

Callaway is about 80 kilometres east of Fargo, North Dakota.