At Toronto's Pearson International Airport, passengers were forced to evacuate via emergency slides in the frigid cold after two planes collided on the ground. No injuries were reported.<br/><br/>WestJet said last night one of its inbound planes from Cancun, Mexico with 168 passengers and a crew of six was stationary and waiting to go to a gate when it was struck by a Sunwing aircraft moving back from a gate.<br/><br/>Spokeswoman Lauren Stewart said the WestJet passengers were safe and clearing customs shortly after the collision. Sunwing said there were no crew or passengers aboard its aircraft. At the time of incident, it was being towed.