Iranians mourn over the covered bodies of loved ones in the village Baje-Baj, near the town of Varzaqan, on August 12, 2012, who were killed in twin earthquakes that hit northwestern Iran.

Iranian hospitals are struggling to cope with the thousands of people injured in Saturday's two earthquakes that struck the northwest.

Families have been huddling in makeshift camps or in parks fearing more after shocks.

State media say at least 250 people have been killed and Iran has declared two days of national mourning for the victims.

Al Jazeera's Nicole Johnston reports.