The remains of a suicide vest has been found at the scene of the grisly attack in the Turkish city of Gaziantep, the prosecutor's office said in a statement on Sunday, cited by local media.

"Officials went to the scene with police to investigate and at the scene of the incident, they found the remains of a suicide bomb vest," the Gaziantep prosecutor's office said, television channel CNN-Turk reported.

President Recep Tayyip Erdogan said the attack on a wedding that left at least 50 people dead was likely carried out by Islamic State group jihadists.