Six US soldiers have been killed and five were wounded in roadside bombings and shooting attacks across Iraq over the weekend, the US military said on Sunday.

A roadside bomb killed three US soldiers and wounded another who were on a patrol mission late Friday in Tuz, some 180 km north of Baghdad, the military said in a brief statement.

One soldier was killed and another wounded in another bombing in west Baghdad on Saturday, the military said.

In another separate roadside bombing, one soldier was killed Sunday and three others were wounded east of Rutbah, 400 km west of Baghdad, the military added.

One soldier was found dead of a gunshot wound on Friday, the military said, adding an investigation was underway.

The names of all the six soldiers were being withheld pending notification of next to kin.

Roadside bombs are the deadliest killers of US soldiers in Iraq with increasing frequency, the military said.

A total of 1,850 US troops have been killed in Iraq since the March 2003 invasion.

Source: Xinhua