ANKARA, Turkey, Aug. 22 (UPI) -- The suicide bomber who killed at least 54 people at a wedding might not have been a child, Turkey's prime minister said Monday.
On Sunday, President Recep Tayyip Erdogan said the attack on Saturday night in Gaziantep was carried out by a bomber between the ages of 12 and 14.
He said authorities were still trying to determine whether it was carried out by "a child or a grown-up."
There was no immediate claim of responsibility, but Erdogan blamed the Islamic State.
Turkish Foreign Minister Mevlut Cavusoglu, in a speech Monday, said the Islamic State should be "completely cleansed" from Syria's border area with Turkey.
"ISIS martyred our ... citizens. It is natural for us to struggle against such an organization both inside and outside of Turkey," he said.
Of the 54 victims, 29 were under the age of 18, the Haberturk newspaper reported. Sixty-six people are still in hospital.
The wedding took place in a mainly Kurdish-inhabited neighborhood of Gaziantep about 60 miles north of the war-torn Syrian city of Aleppo.
A written statement by the Gaziantep Chief Prosecutor's Office on Sunday said that police found pieces of a suicide vest in the area where the blast took place.