An Air Canada regional jet collided with a fire truck on the runway at New York's LaGuardia Airport, killing two people and injuring two Port Authority employees. The plane was carrying 72 passengers and four crew members, according to a statement from the airline. The impact of the collision left the jet with its nose tilted upward. The airport was closed until 2 p.m. Monday to facilitate the investigation. The National Transportation Safety Board is investigating the incident.