According to reports, at least three of the bombers were from the southeastern city of Bingol, considered a breeding ground of the Hezbollah radical Islamic group, which is unrelated to the Lebanese group of the same name.
Conform relatărilor, cel puţin trei dintre atentatori proveneau din oraşul sud-estic Bingol, considerat a fi o pepinieră a grupului radical islamist Hezbollah, care nu are nici o legătură cu gruparea libaneză cu acelaşi nume.