The country has declared three days of national mourning after at least 22 young girls died in a fire at a home for vulnerable teenagers and children. Police are investigating claims of arson.
Tens of thousands of Iranians paid their final respects on Monday to 16 firefighters killed when a burning building collapsed in Tehran earlier this month.
Rescuers are digging through the rubble of a collapsed building in Tehran, Iran, looking for as many as 25 missing people including firefighters.
Rescue operations continued late on Thursday in the Iranian capital Tehran following the collapse of a shopping centre which had caught fire.