Turkey's president has blamed the Islamic State group for the bombing of an outdoor wedding party in the southeast that killed 30 people and wounded 94 others.
Officials say Saturday's attack in Gaziantep, near Syria's border, appeared to be a suicide bombing.
President Recep Tayyip Erdogan issued a statement early Sunday saying that IS group was "the most likely perpetrator of the Gaziantep attack."
Erdogan said there was "absolutely no difference" between IS group , Kurdish rebels and the movement of U.S.-based cleric Fethullah Gulen, calling them terrorist groups.
Turkey has seen a spate of attacks in recent months and a failed military coup on July 15, which the government blames on Gulen's movement. Gulen denies any involvement.