Montreal police believe a former massage therapist convicted of sexual assault may have more victims.

David Kost, 49, pleaded guilty in October to sexually assaulting two women, in both cases during massage therapy sessions.

Those sexual assaults took place in 2015 and 2016, and Kost will be sentenced for those crimes in December.

Now police believe Kost may have other victims who have not come forward.

Since Kost first appeared in court this year, two other women have contacted police to make sexual assault complaints.

David Kost offered massage therapy services in a private clinic and at home.

"He does massages at his home and he does massage in a private clinic, so thats why they think maybe they have other victims, because he already pleaded guilty on two charge of sexual assault and after his apprearance in court, two other victims came forward that went to the police to press charge against him," said Andree-Anne Picard of Montreal police.

He is a white man who speaks English. He is 6’7” (2 metres) tall and weighs 250 lbs. (113 kgs). He has brown hair and brown eyes.

Police say individuals should contact them by calling 9-1-1 or visiting their local police department.