New Delhi, July 20 -- Officials struggled Friday to identify more than a dozen bodies pulled from a deadly shopping mall fire in Iraq, amid ongoing investigations into what caused the blaze.

An Iraqi medical official who spoke on condition of anonymity because he was not authorized to comment said the final death toll was 63, including 18 bodies that could not be identified due to the severity of the burns and would undergo DNA testing.

The Corniche Hypermarket mall in the town of Kut in Wasit province, a five-story building containing restaurants, shops and a supermarket, had opened just days before the blaze, which officials said broke out late Wednesday on the second floor in an area selling perfume and cosmetics.

Civil defense crew...