Last week's earthquake in south-east Turkey killed 40 people, bringing the death toll in two tremors over the last three weeks to 644, the state Disaster and Emergency Administration (AFAD) said on Sunday.
Tens of thousands of people have been left homeless by the quakes in Van province, bordering Iran, and their plight has been worsened by freezing temperatures after the first heavy snowfall of winter.
Prime Minister Tayyip Erdogan visited the quake zone on Saturday amid rising anger among homeless families over relief efforts. Few people are willing to stay in homes scarred by cracks in walls and ceilings while aftershocks shake the area.