A fire broke out in a shopping mall in Levent, Istanbul, APA's Istanbul correspondent reported on Friday.
The blaze, which started on the roof, continues to be intervened by the teams.
Meanwhile, no casualties were reported.
Last month, a powerful explosion rocked Istanbul and left at least six people dead.
Turkish President Recep Tayyip Erdoğan denounced the "vile attack" that ripped through central Istanbul on Sunday, leaving six people dead and 53 others injured.
"The relevant units of our state are working to find the perpetrators... behind this vile attack," Erdoğan told a televised press conference.
"It might be wrong if we say for sure that this is terror but according to first signs... there is a smell of terror there," he added.
The president stressed that the attempt to take over Turkey and the Turkish nation through terrorism will not reach its goal today or tomorrow.