MONTREAL — Another six people from a Sunwing flight to Mexico last year on which passengers were filmed partying are facing potentially hefty fines.

Transport Minister Omar Alghabra says in a tweet they face fines of up to $5,000 stemming from the Dec. 30 flight from Montreal to Cancun.

He says five of the cases involve non-compliance with vaccination rules and one was for failing to wear a mask.

Transport Canada has handed out a dozen penalties in total so far and says more are expected.

Videos of the charter flight shared on social media showed unmasked passengers in close proximity singing and dancing in the aisle and on seats as some clutched bottles of liquor, snapped selfies and vaped.

The federal Transport Department launched an investigation on Jan. 4 to determine whether travellers violated laws or regulations around aviation safety and security.