The death toll has crossed 400 in the powerful 7.3 magnitude earthquake that shook Iran-Iraq border on Sunday night.
Over 6,700 have been injured, and more casualties are expected as as search and rescue teams are still reaching remote parts, says the Irna news agency.
The highest death toll has been recorded at Kermanshah province. The government has announced three day’s mourning in the region.
Iranian Red Crescent said that over 70,000 people were in need of emergency shelter in the affected regions.
The latest measurements of the US Geological Survey says that the quake had originated around 19 miles (30.6km) outside the eastern Iraqi city of Halabja.