An attack on US forces in the Sadr City suburb. Shia fighters from the Mehdi army, the militia of radical cleric Moqtada al-Sadr, attacked a convoy of US soldiers from the 1st Cavalry. An RPG hit a Humvee which burst into flames, and then a secondary bomb was detonated at the roadside. Dead US soldiers have been retrieved and lie on the road a few metres to the right of the burning vehicle. This was one of the worst single attacks on US forces in Baghdad, with five soldiers being killed.