NEW YORK/MONTREAL - Investigators probing the deadly collision of an Air Canada Express jet with a fire truck at New York’s LaGuardia airport said on March 23 they wanted to interview an air traffic controller who was juggling another emergency in the run-up to the crash.

National Transportation Safety Board chairwoman Jennifer Homendy told reporters at LaGuardia that the controller would be one part of the investigation by the independent federal agency, which would “rule nothing out”.