At least 14 have been killed and 315 more injured in an earthquake in Turkey.
The tremor, with a preliminary magnitude of 6.8, shook the country's east just before 6pm GMT, Turkish officials say.
It struck near the town of Sivrice in eastern Elazig province causing buildings to collapse, the Disaster and Emergency Management Presidency said on Friday.
People in Elazig whose homes were damaged or were too afraid to go indoors were being moved to student dormitories or sports centre amid freezing conditions.
Governor Cetin Oktay Kaldirim said a fire broke out in a building in Sivrice but was quickly brought under control.
Earlier, Interior Minister Suleyman Soylu told NTV television that rescuers were trying to reach survivors after a four- or five-story building collapsed in the town of Maden, in Elazig.
Around four to five buildings collapsed in Sivrice, where two people were hurt, he said.
Local administrator Cuma Telceken said up to seven people are believed to be trapped inside two collapsed buildings in Maden.
Television footage showed rescuers searching for survivors among debris.
Mr Soylu was at a meeting on earthquake preparedness when the quake struck.
Rescue teams from neighboring provinces were dispatched to the affected areas, Anadolu Agency reported.
Defence Minister Hulusi Akar said troops were on standby to help is they are needed.
The Kandilli seismology center in Istanbul said the quake measured 6.5., while the US Geological Survey gave the preliminary magnitude as 6.7, and said the quake affected not only Turkey but also Syria, Georgia and Armenia.
Different earthquake monitoring centers frequently give differing estimates.
NTV said the earthquake was felt in several Turkish provinces and sent people running outdoors in panic.
Turkey sits on top of two major fault-lines and earthquakes are frequent.
Two strong earthquakes struck northwest Turkey in 1999, killing around 18,000 people.
A magnitude 6 earthquake killed 51 people in Elazig in 2010.
