Iraqi suicide bombers use poison gas

Three suicide bombers driving chlorine-laden trucks struck in the Sunni insurgent stronghold of Anbar province, killing two policemen and forcing about 350 Iraqi civilians and six US troops to seek treatment for exposure to the gas, the military said today.

The attacks came after back-to-back bombings last month released chlorine gas, prompting the US military to warn that insurgents are adopting new tactics in a campaign to spread panic.