At least 4 dead, 12 critically injured after tour bus and duck boat collide in Seattle. Two people were killed and at least nine were critically injured when a tour .\r
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A tour vehicle and a charter bus have collided in Seattle, in Washington state, leaving at least four people dead and several critically injured. TV footage showed .\r
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BREAKING: Death toll rises to 4 in Seattle tour bus crash; 44 people transferred to hospital and 33 being treated on scene, fire chief says. Deadly collision: At .