The bomber was between 12 and 14 years old, Erdogan told reporters as quoted by the Daily Sabah newspaper.
The bombing that took place on Saturday night claimed the lives of at least 51 people. Gaziantep Governor Ali Yerlikaya described the incident as a "terror attack."
Earlier in the day, the Turkish leader suggested the Daesh jihadist group, which is prohibited in many countries, including Russia, could be behind the bombing, however no group has claimed responsibility for the attack yet.
