The attack occurred Wednesday in the ethnically mixed town of Tuz Khurmatu . A spokesman for Iraq's Interior Ministry said that a suicide bomber blew himself up at an Iraqi army checkpoint near Tuz, killing three soldiers and wounding four others. The U.S. Embassy in Baghdad called the bombing `` cowardly and reprehensible . '' 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 .
The attack occurred Wednesday in the ethnically mixed town of Tuz Khurmatu . A spokesman for Iraq's Interior Ministry said that a suicide bomber blew himself up at an Iraqi army checkpoint near Tuz, killing three soldiers and wounding four others. 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 .