UPDATE: On April 18, 2018, an Ontario Court of Justice judge found Dr. Allan Bortnick not guilty on all counts of sexual assault filed against him.

Police arrested and charged a Toronto chiropractor on Tuesday morning with another three counts of sexual assault for allegedly assaulting patients during treatment.

Dr. Allan Bortnick, 66, was already facing two previous charges of sexual assault. One count came in April 2015, when Bortnick was originally charged. Another was added on July 7.

He was operating as a chiropractor and naturopath at 1126 Eglinton Avenue West. He appeared in court on Tuesday morning.

According to Toronto police, the alleged sexual assaults took place on Monday Oct. 6, 2003; between January and December 2008; and Thursday, March 31, 2011.

Police believe there may be other victims.