Eight people were killed and 60 were wounded on Saturday in an attack on a wedding party in southern Turkey that a deputy prime minister said appeared to have been carried out by a suicide bomber.
Ambulances raced to the scene of the attack in the Sahinbey district of the city of Gaziantep and police sealed off the area.
A parliamentary deputy from the ruling AK Party said in a twitter message that Islamic State militants were believed to be behind the attack. There was no immediate claim of responsibility.
NATO member Turkey has suffered a string of attacks this year by Islamic State fighters, who pass relatively easily across the border from neighboring Syria, and by Kurdish militants seeking autonomy or independence.