Nine people were killed and nearly 50 injured after a high-speed train crashed into a locomotive in the Turkish capital of Ankara, officials said.
Transport Minister Cahit Turhan told reporters in televised remarks that three of those killed were operators of the train.
Mr Turhan added that 47 people were injured and were in hospital for treatment.
The fast train had been on its way from Ankara's main station to the central province of Konya and there were 206 passengers on board.
Earlier, the Ankara governor's office said three out of a total of 46 people had been seriously injured.
Mr Turhan said the accident took place six minutes after the train left Ankara as it entered the Marsandiz station.
Images published by Turkish media showed some wagons had derailed and debris from the train scattered on the rail track, which was covered in snow.
The windows of one wagon were completely broken, while another wagon had been smashed after hitting the footbridge, which also collapsed.
The Ankara public prosecutor has begun an investigation into the crash, state news agency Anadolu reported.
The Ankara to Konya high-speed route opened in 2011 and was followed in 2014 with a high-speed link between Ankara and Istanbul.
The accident comes after another rail disaster in July this year when 24 people were killed and hundreds more injured after a train derailed in Tekirdag province, northwest Turkey, due to ground erosion following heavy rains.
Turkey's rail network has been hit by several fatal accidents in recent years.
In March 2014, a commuter train smashed into a minibus on a railway track in the southern Turkish province of Mersin, which left ten dead.
In January 2008, nine people were killed when a train derailed in the Kutahya region south of Istanbul because of faulty tracks.
Turkey's worst rail disaster in recent history was in July 2004 when 41 people were killed and 80 injured after a high-speed train derailed in the northwestern province of Sakarya.
