Two US soldiers were killed and four others wounded by roadside bomb attacks in the Iraqi capital on Tuesday, the US military said on Wednesday.

A soldier assigned to Multi National Division Baghdad was killed and another was wounded in a roadside bomb explosion while conducting security operations in a southeastern area in Baghdad, the military said in a statement.

A second soldier from the same unit was killed and three others wounded while on combat patrol in southern Baghdad, the military said in a separate statement.

Since the US-led war in Iraq broke out in March 2003, over 3, 195 US soldiers have been killed in the country, according to media count based on Pentagon figures.

Also on Tuesday morning, three people were killed, with another one kidnapped, in separate shooting and bombing attacks in Tikrit, some 170 km north of Baghdad, a local police source told Xinhua.

"Unknown gunmen showered with bullets a civilian car with three persons from one family aboard when they were heading to their work in Tikrit University, in eastern Tikrit, killing two of them and kidnapping the third," the source said on condition of anonymity.

Earlier, a roadside bomb detonated near an oil tanker in eastern Tikrit, killing its driver and destroying the tanker as well, the source added.

(Xinhua News Agency March 14, 2007)