"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.. There were no Sunwing crew or passengers onboard at the time of the incident," it said.In early August, a Canadian and a Polish passenger jet clipped wings on the ground at the airport, causing "serious" damage but no casualties.The collision is the second such incident at Toronto Pearson in recent months."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.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.

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.Both WestJet and Sunwing confirmed that their planes were involved in the collision at Toronto Pearson International, the second such incident at the airport in five months.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.A post on the Sunwing Vacations Facebook page confirmed the collision.Montreal:  Two jets collided on the ground at a Toronto airport on Friday, setting sliding gate opener remote control the tail of one aircraft alight and prompting passengers to evacuate the other via an emergency slide."A Sunwing aircraft, under tow by our ground handling service provider, came into contact with another aircraft