A suicide car bomb exploded outside an Iraqi army recruitment center in northern Baghdad on Tuesday, killing at least six Iraqis and wounding 44, police said. On the other side of the capital, Iraq's parliament briefly adjourned after a legislator claimed he had been roughed up at a U.S. checkpoint. The blast occurred in the Azamiyah section of the capital about 18 meters (yards) from the front gate of the center and the fatalities included at least two soldiers, said police Col. Hussein Mutlaq. All the casualties appeared to be Iraqi, he said. In other violence, masked men armed with machine guns and traveling in two cars in the capital shot and killed Prof. Fuad Ibrahim Mohamed Al-Bayati as he left his home for work at the University of Baghdad, police said. Outside the capital, a roadside bomb that exploded 48 kilometers (30 miles) south of Baghdad killed one man, and another roadside bomb missed a U.S. military convoy but wounded three nearby civilians in Baqouba, 60 kilometers (35 miles) northeast of Baghdad, police said. Elsewhere, Iraqi security forces began scaling back their search operation in Madain, a town south of Baghdad, where reports that Sunni militants had taken up to 100 Shiites hostage turned out to be false.