At least two people are killed and a dozen wounded when a car bomb explodes in the ethnically mixed Iraqi city of Kirkuk Wednesday.<br/> <br />No one is immediately taking responsibility for the attack.<br/> <br />The UN says nearly 900 civilians were killed across Iraq last month -- putting the death toll so far this year well above the total in 2013.<br/> <br />More than two years of civil war in neighboring Syria has aggravated sectarian divisions and strained Iraq's fragile coalition of Shi'ite, Kurdish and Sunni factions.
