Tehran, May 30 Twenty-nine people were killed and 38 others remain unaccounted for after a 10-storey commercial building collapsed in Iran's Abadan city, a top official said.
While visiting the collapse site, Sadeq Khalilian, Governor of Khuzestan province where Abadan is located, confirmed the death toll to reporters and added that victims were yet to be identified, reports Xinhua news agency.
He said search and rescue work was continuing to find the missing people, assuring that the operations will continue until every person is accounted for.
Authorities fear that the remaining parts of the building and adjacent structures may also collapse.
Iran announced a day of national mourning on Sunday to honour the victims.
The Mizan news agency of the Iranian judiciary reported that 10 people were arrested for the incident, in which the building's owner and contractor were killed.
The under-construction building, known as Metropol, was on a crowded street in downtown Abadan, surrounded by commercial and medical complexes and offices.
Parts of the building collapsed suddenly, trapping dozens of people beneath the rubble.
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