Overcrowded hospitals in northwest Iran are struggling to cope with thousands of earthquake victims as rescuers race to reach remote villages after two powerful quakes killed nearly 300 people.
Thousands huddled in makeshift camps or slept in the street after Saturday's quakes in fear of more aftershocks, 60 of which have already struck.
A lack of tents and other supplies left them exposed to the night chill, witnesses said.
The worst damage and most casualties appeared to have been in rural villages around the towns of Ahar, Varzaghan and Harees, near the major city of Tabriz, Iranian media reported.
Iranian officials said rescue operations had ended by Sunday afternoon and that all those trapped beneath the rubble had been freed, Iran's English-language Press TV reported.
Many villages are hard to reach by road, hindering rescue efforts.
Hospitals in Tabriz, Ardabil and other cities nearby took in many of the injured, residents and Iranian media said, and there were long queues of survivors waiting to be treated.
The U.S. Geological Survey measured Saturday's first quake at 6.4 magnitude and said it struck 60km northeast of the city of Tabriz, a trading hub far from Iran's oil-producing areas and known nuclear facilities.
The second, measuring 6.3, struck 11 minutes later near Varzaghan, 49km northeast of Tabriz.
More than 1,000 villages in the area were affected by the earthquakes, Ahmad Reza Shaji'i, a Red Crescent official, told the Iranian Students' News Agency (ISNA).
About 130 villages suffered more than 70% damage, and 20 villages were completely destroyed, he said.
"We saw some villages that were truly destroyed," said Mr Sadati, the photographer who was documenting the quake aftermath.
"One good thing was that the earthquake happened during the day, so many people were not in their homes. If it had happened at night the casualties would have been far worse."
Close to 300 people are believed to be dead, said Reza Sadighi, Ahar's local governor, Fars news agency said.
Mr Shaji'i told ISNA that 2,600 people are believed to be injured.
Nearly 100 ambulances and 1,100 Red Crescent workers were deployed, Shaji'i said, along with 44,000 food packages and 5,600 tents for shelter.
The relief agency had enough supplies and most residents in the area had access to clean water but Shaji'i asked residents to donate cash to the relief effort.
