A care-giver at a Toronto home for seniors has been accused of sexually assaulting an 88-year-old Alzheimer's patient.

James Stewart Brown, 57, was arrested Tuesday night in connection with a sexual assault investigation.

Brown is a personal support worker at the seniors home, and had been an employee there for about seven years.

Police said his arrest came after another worker walked in while the alleged assault took place in a bathroom at the facility on Tuesday. Brown was arrested later that evening.

"This man was caught in the [alleged] act," said Toronto police Const. Tony Vella. "Again, he was arrested, but these are still allegations until proven in court."

Police believe there may be other victims.

The seniors facility is home to more than 300 residents. Friends and family of residents said they were shocked to hear about the incident because they consider the quality of care provided by staff there to be very high.

But one woman said she was very disturbed by the arrest.

"Totally disgusting. They can't be in their right minds, that's all I can say," she said outside the centre. "Because they're taking advantage of someone who's very vulnerable."

Brown will be back in court later this week. In the mean time, police are asking people to come forward if they suspect there were more incidents or victims.