A Quebec fashion designer and his partner say they were victims of a homophobic attack after they were allegedly beaten outside a bar in the province's Charlevoix region.

Markantoine Lynch-Boisvert says he and Alex James Taboureau were leaving a bar in La Malbaie late Friday night when a man began directing homophobic insults their way.

He said they tried to leave but were confronted and later pursued by the man, who allegedly headbutted Lynch-Boisvert in the face while two of his friends attacked his partner.

Quebec provincial police confirm they responded to a call in La Malbaie Friday night and have opened an investigation into the incident.

Lynch-Boisvert says his injuries include three facial fractures, while Taboureau is recovering from bruising and a minor concussion.

Numerous politicians including Quebec Premier Francois Legault and Montreal Mayor Valerie Plante have taken to social media to denounce the alleged attack.