Five US soldiers killed in central Iraq

Five US soldiers have been killed in central Iraq, the US military has said.

Iraqi security sources said there had been a rocket attack, with other reports saying the target was on the outskirts of Baghdad.
The BBC's Jim Muir says the US The US soldiers' role is to advise and assist Iraq's military has suffered its single most serious incident in Iraq in over two years.
Elsewhere in the country on Monday, at least 21 people were killed in twin bomb attacks, one on a mosque, in the northern city of Tikrit.US fatalities in Iraq have been rare since Washington officially ended combat operations in the country last August, leaving about 45,000 troops.The role of the US army, which is due to pull out of Iraq on 31 December, is to advise and help the security forces.