Insurgents launched a wave of attacks across Iraq Tuesday, killing at least 12 people.
In the deadliest attack, an al-Qaida-linked insurgent blew up his car near an army recruitment center in Baghdad, killing at least six people and wounding 30 others. Another car bomber in the capital wounded seven people.
In another attack, gunmen killed a Baghdad university professor and his son as they drove through the city.
West of Baghdad, insurgents opened fire on Iraqi soldiers in Khalidiyah, killing at least four troops.
Meanwhile, the Iraqi parliament adjourned Tuesday in an hour-long protest after a lawmaker said he was mistreated at a U.S. checkpoint in Baghdad. The U.S. military says an initial probe suggests the lawmaker (Fatah al-Shaik) got involved in an altercation with a translator before a U.S. soldier briefly held onto the legislator to separate them.