Thousands of Iranians have spent a second night outdoors in bitterly cold temperatures after a devastating earthquake hit the west of the country.
The government is scrambling to get aid to the worst-hit area in the mountainous province of Kermanshah, where hundreds of homes were destroyed.
More than 430 people were killed and about 7,000 injured when the quake hit near the Iran-Iraq border on Sunday.
Iran has declared Tuesday a national day of mourning.
Authorities said that more than 30,000 houses had been damaged and at least two villages completely destroyed.
President Hassan Rouhani during his visit to the region on Tuesday pointed out that many privately-built homes appeared to have been spared damage and assured that the government would hold accountable anyone found not to have upheld building standards.
Tremors were felt as far away as Turkey, Israel and Kuwait.