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A 39-year-old Toronto photographer who allegedly sexually assaulted an 18-year-old model at his waterfront home faces additional sexual assault charges after four more women came forward to police.

Toronto police told Global News the teenage girl was a model who was connected to Holland through a modelling agency in the city.

Police said she went to the man’s home in the Queens Quay and Yonge Street area for a photo shoot on Saturday Feb. 20 at about 1 p.m.

READ MORE: Toronto photographer sexually assaulted teenage model during photo shoot: police

The woman then allegedly began posing for the man during the photo session, which is when police said he sexually assaulted her.

Police arrested Mark Holland, 39, of Toronto, on March 1 and charged him with one count of sexual assault.

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On Friday, investigators alleged that between 1994 and 2014, a then-15-year-old, a then-26-year-old, and two then-27-year-old females were sexually assaulted by Holland.

WATCH: Toronto photographer charged with sexual assault

1:22 Toronto photographer charged with sexual assault Toronto photographer charged with sexual assault

He was additionally charged with four counts of sexual assault on Thursday and police said they believe there may be more victims.

Holland is connected to various photography and media companies such as Kleen Media, Kleen Events and Flirts Magazine.

Kleen Media is described on Twitter “Toronto’s leader in marketing, promotions, advertising and cutting-edge nightlife,” while Flirts Magazine is described as combining “sensual photography, fashion and art.”

READ MORE: New charges laid against photographer accused of sexually assaulting teens

Photos on Holland’s Facebook page show images taken and events scheduled at various venues such as Uniun Nightclub, Wildflower, The Everleigh and Brassaii lounge among others.

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Anyone with information is asked to contact police at 416-808-7474, Crime Stoppers anonymously at 416-222-TIPS (8477), online at http://www.222tips.com, or by texting TOR and your message to CRIMES (274637).