A string of more than a dozen attacks killed 22 people and left scores wounded on Wednesday, police and hospital officials said. There were no claims of responsibility, the Associated Press reported. The deadliest attack occurred in north Baghdad where a suicide bomber detonated a car bomb in a parking lot behind a police station, killing 15 people, including six policemen and nine civilians. Another 58 were wounded in the attack in Baghdad's Qahira neighborhood, police and hospital officials said. The explosion left a crater of about three meters in diameter, damaged two nearby houses and brought down segments of the concrete blast wall protecting the police station. Also in Baghdad, two civilians were killed and eight were wounded when a car packed with explosives blew up in Adan square in the northern part of the capital. North of the capital, a car bomb exploded near the local council building of Muqdadiyah, 60 miles (90 kilometers) from Baghdad, killing three civilians and injuring 18, according to Diyala police spokesman Maj. Ghalib al-Karkhi. In Karbala, 50 miles (80 kilometers) south of Baghdad, 28 people were wounded when a car bomb exploded near a police station. A police spokesman in the city, Jassim al-Khatabi, said civilians, policemen and several detainees held at the station were among the injured. In Basra, in southern Iraq, two people were wounded in a car bomb explosion, police the country's second largest city said. In Baghdad on Wednesday, a bomb exploded near a bank in the central district of Karradah, wounding six people waiting to collect their pensions, police said.