Witnesses say guests at a ski resort hotel in Turkey tried to escape a deadly fire with ropes and sheets hung from windows.

Tuesday's fire at the Grand Kartal Hotel in Kartalkaya left at least 79 people dead and 51 injured, happening during a particularly busy season.

Some had returned to the hotel year after year. Their deaths — amid dozens of others at the hotel — have stirred grief and outrage.

At least 66 people have been killed and 51 have been injured after a fire broke out at the Grand Kartal Hotel which is in a popular ski resort in Bolu province, Turkey, it's been reported

A devastating fire at the Grand Kartal hotel in Kartalkaya, a ski resort in northwestern Turkey, resulted in 66 fatalities, with 51 others injured. Eyewitness reports indicate the hotel’s fire detection system failed.

A devastating fire at the Grand Kartal hotel in Turkey's Kartalkaya ski resort killed at least 76 people and injured 51 others during a busy school holiday period.

Turkish authorities are investigating a fire at a 12-story hotel at a popular ski resort in northwestern Turkey that killed 76 people, including children.

Dozens of people were killed after a fire ripped through a ski resort hotel in northwestern Turkey on Tuesday, forcing desperate holidaymakers to leap from windows to escape from the flames and smoke.

A day of mourning is under way in Turkey for the 79 victims of a fire that engulfed a popular ski resort hotel in the country's north-west. The fire broke out at the wooden-clad 12-storey Grand Kartal Hotel in Bolu at 03:27 local time (00:27 GMT) during a busy holiday period when 234 people were staying there.