Day of violence ends with 23 dead, 22 hurt in Iraq BAGHDAD, July 25 (UPI) -- At least 12 truck drivers were killed and three others wounded in an attack on a convoy north of Baghdad, Iraqi officials said Thursday. The attack on the drivers occurred Wednesday evening on a highway about 105 miles north of Baghdad in the largely Sunni province of Salaheddin and ended a day in which at least 23 people were killed and 22 injured in shootings and explosions around the country, CNN reported. An earlier bomb explosion outside a shopping market in a neighborhood in northeastern Baghdad killed four people and wounded 13, police said. Wednesday morning, an attack on a security checkpoint about 19 miles north of Mosul left seven federal police officials dead and three others wounded. Three people in an ambulance were wounded as they responded to the scene, Mosul police said.