Four people are dead after a search-and-rescue helicopter crashed in Slovakia, Interior Minister Robert Kalinak said Thursday.
It took hours to find the wreckage of the craft, as it came down in an area that is difficult to access, Kalinak said.
The air emergency service said that a patient and three crew members had been on board the flying ambulance.
The cause of the crash was still being investigated.
A witness told TA3 television that the helicopter had been called out to assist after a person broke a leg in the mountainous region near the village of Strelniky in the centre of the country.
Shortly after the helicopter took off with the patient on board, radio contact was lost.
Kalinak rushed to the scene during the night. An emergency station had been set up on a football pitch in Strelniky for the rescue operation.