A roadside bomb missed a US convoy in eastern Baghdad on Sunday but killed a 12-year-old girl and wounded four other Iraqis, police said. US soldiers sealed off the area in the mostly Shiite Baladiyat area following the 8:45 a.m. blast, a policeman said on condition of anonymity because he was not authorized to release the information. The Iraqi victims were all civilians who happened to be in the area when the explosion occurred, he said. There were no reports of American casualties. In western Baghdad, assailants in a speeding car hurled a hand grenade at a minibus traveling Sunday between the Bab al-Muadham bus terminal to Baiyaa, a flashpoint neighborhood where Shiite militiamen drove away many Sunnis this year.