The pilots of an Air Canada Express regional jet have been killed after it collided with a fire truck while landing at New York’s LaGuardia airport. It happened as a firefighting vehicle was responding to a separate incident, according to the Port Authority of New York and New Jersey, which runs the airport. The incident closed the airport. The plane, operated by its partner Jazz Aviation, was carrying 72 passengers and four crew members from Montreal. Air Canada referred request for comment to Jazz’s statement and said it was aware of the incident. The National Transportation Safety Board and the FAA did not immediately respond to requests for comment