Turkey has identified the suicide bomber behind Saturday's attack in Istanbul as a member of the Islamic State group born in the southern Turkish city of Gaziantep, Interior Minister Efkan Ala said Sunday.

"We have determined that Mehmet Ozturk, born in 1992 in Gaziantep, has carried out the heinous attack on Saturday in Istanbul. It has been established that he is a member of Daesh," Ala told a news conference broadcast live on television.

Daesh is an Arabic acronym for Islamic State.