As they searched the pile of rubble, rescuers occasionally appealed for quiet to listen for any sounds coming from underneath that might indicate trapped survivors.
Yerlikaya told reporters at the site that 43 people were registered in 14 apartments at the address, but that the top three floors of the building had been built illegally.
An eight-story building has collapsed in Istanbul, killing at least one person and trapping several others inside the rubble, according to Turkish media reports.
Istanbul Governor Ali Yerlikaya said earlier that three of the injured were in serious condition. At least one person has died while three of those injured have been rescued.
Overnight, a 9-year-old boy was also rescued from the debris.
It is not clear how many people remain unaccounted for following the collapse of the building on the Asian side of Istanbul, in the mostly residential Kartal district. "We are continuing with our search and rescue efforts so that we can deliver good news (about survivors)".
An aerial picture taken with drone shows rescuers working at the site of a collapsed building in Istanbul, Turkey, 06 February 2019.
This frame made from video shows the site where a seven-story building collapsed, in Istanbul, Wednesday, Feb. 6, 2019.
The chief prosecutor's office said it launched an investigation into the collapse of the 27-year-old building.
He added that a textile workshop on the ground floor was operating without a licence.