Baghdad ? The U.S. military sent search dogs Sunday to help find more than a dozen people still missing and feared dead after the country’s worst bombing this year devastated a northern Iraqi town just over a week before U.S. troops are due to leave Iraq’s cities.

The truck bombing Saturday near the ethnically tense city of Kirkuk flattened a Shiite mosque and dozens of mud-brick houses around it, killing at least 75 people.

Iraqi police blamed al-Qaida in Iraq, saying it was part of an insurgent campaign to destabilize the country and undermine confidence in the government.