Iran building collapse death toll hits 10

"After hours of emergency efforts, 30 people trapped under the rubble were extracted alive and taken to hospital to treat their injuries," a deputy governor of the Khuzestan province told IRNA.

The number of people still trapped under the rubble remains unclear.

The head of Khuzestan province's judiciary has ordered an investigation into the collapse, and its owner and the contractor who built it have been arrested, state TV said.