The attack occurred mainly in the ethnically mixed town of Tuz ##la . Among the injured is Ahmed Abdul - Aziz , deputy governor of Salaheddin province . Last week , a series of car and truck bombs targeted buses and train stations . Uptick in violence has coincided with three weeks of protests in Sunni provinces .
The attack occurred Wednesday in the ethnically mixed town of Tuz Khurmatu . Among the injured is Ahmed Abdul-Wahed , deputy governor of Salaheddin province . Last week , a series of car and roadside bombs targeted buses and bus stations . Uptick in violence has coincided with three weeks of protests in Sunni provinces .