A Serbian military helicopter transporting a 5-day-old baby to emergency medical treatment crashed late Friday.
The Defense Ministry said Saturday there were no survivors.
Media reports said seven people - four crew members, two medical workers and the baby with severe respiratory problems - were onboard the aircraft when it crashed near Belgrade's international airport.
The French News Agency, AFP, says the child had been rushed to a hospital in an ambulance, but the vehicle became stuck in a mudslide.