BAGHDAD: A roadside bomb attack in east Baghdad killed an Iraqi army general on Wednesday while violence across the capital wounded 13 people, including a US soldier, security officials said.

Brigadier General Taha Ahmed Samir, head of training for Iraq's nascent air force, was killed when a military convoy he was in was hit by the blast in Al-Kanat Street, an interior ministry official said, speaking on condition of anonymity.

Two other soldiers were wounded in the explosion. Elsewhere in Baghdad, a blast in the Karradat Mariam neighbourhood on the edge of the heavily-fortified Green Zone, left five people wounded, the official said.

He added that another explosion in Baab al-Muadham, central Baghdad, injured four. A US military spokeswoman said an American soldier suffered "superficial wounds" from the blast.