Scores Choke in Iraq Chlorine Truck Bomb

Story Highlights

• NEW: Six dead, scores poisoned in toxic blast in Iraqi town of Taji

• 13 people killed in four newly reported Iraq attacks, police say

• Outpost ambush kills two U.S. troops, eight Iraqi police, officials say

BAGHDAD, Iraq (CNN) -- A cloud of deadly toxic gas engulfed an Iraqi town Tuesday, killing six people and leaving dozens of others choking on fumes after a tanker carrying chlorine exploded outside a restaurant.

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