Four people were killed and several injured when a train crashed into an army truck during a military exercise in southern Finland on Thursday, police and defence forces said.
Three of the dead were conscripts and one was a passenger on the train, they said. Four other conscripts were hurt.
Helsingin Sanomat newspaper said seven train passengers had been injured as well.
Police said they would hold a news conference at 0900 GMT.
Military service is obligatory for men in Finland.