Thirty-seven people have been injured, IRNA also said on Thursday.
Videos and pictures shared by the Iranian Red Crescent on Monday showed rescue teams at the site removing rubble and debris from a destroyed building. One helicopter, 12 teams, and sniffer dogs were dispatched as the rescue operation continued, the organization said.
“Adjacent buildings nearby also have unstable conditions and are at risk of collapse,” it added at the time.
While the cause of the collapse remains under investigation, a total of 11 people related to the construction of the building have been detained so far, including the mayor of Abadan, state-run Channel One said on Friday.
The owner of the building and the contractor are also among those arrested, Iranian media has reported, citing the Abadan special prosecutor.