BAGHDAD, July 23 (Xinhua) -- A United States soldier was killed and two were wounded near the town of Ramadi west of Baghdad on Wednesday when their convoy was attacked with an improvised explosive, a U.S. military spokesman said.

　　The attack came just two hours after a U.S. s oldier was killed and six others were wounded in a blast in Mosul in northern Iraq.

　　The U.S. casualties came following news that Saddam Hussein's sons Uday and Qusay were killed in a gunbattle with U.S. troops in Mosul Tuesday in northern Iraq.

　　Paul Bremer, the top U.S. civil administrator for Iraq, said Tuesday the deaths of Saddam's sons "marginally improve the safety (of U.S. troops in Iraq), although we could see attacks in the next few days as revenge." End