At least 14 people have been killed and nine wounded in a US air strike in Baghdad.

The attack in western Mansour district of the capital, a stronghold of Shia cleric Moqtada al-Sadr, destroyed several houses.

The US military has launched a series of operations, including air strikes against what it calls rogue elements of the Mr Sadr's Mehdi Army.

It says many of these groups have links to Iran, which it claims is supply weapons and training. Iran denies the charge.