Two airplanes collided on the ground at a Toronto airport on Friday, setting the tail of one aircraft alight and prompting dozens of passengers to evacuate the other via an emergency slide. Video footage shared on social media appeared to show the tail of one aircraft aflame and spewing black smoke, and later images indicated that it was Sunwings plane at Toronto Pearson International. Both WestJet and Sunwing confirmed that their jets were involved in the collision. "WestJet has confirmed that WS2425, a Boeing 737-800 with 168 guests and six crew onboard, inbound from Cancun to Toronto Pearson, while waiting to proceed to the gate and stationary, was struck by a Sunwing aircraft pushing back from the gate," it said on its Twitter account. "Due to the position of the aircraft on the laneway, WestJet guests required evacuation via emergency slide. Emergency crews were on hand and responded immediately," the airline tweeted. "We can confirm guests are safely in the terminal and they are in the process of clearing customs," it said, without specifying whether or not there were injuries. A post on the Sunwing Vacations Facebook page confirmed the collision. "A Sunwing aircraft, under tow by our ground handling service provider, came into contact with another aircraft. There were no Sunwing crew or passengers onboard at the time of the incident," it said. Toronto Pearson said that "fire and emergency services have responded and passengers have been evacuated" following the incident, which "impacted" some flight operations at the airports Terminal Three.