A missing person's case in Trenton has turned into a murder investigation.

Provincial police say 40-year-old Cindy Sullivan of Trenton, who was last seen on Wednesday evening, was found dead by officers when they went to a home on Adrian Court late Friday evening.

There will be an autopsy.

A 42-year-old man at the home was arrested and is being held in custody. No charges have been laid.

Police say the man and woman were known to each other.

The investigation is continuing.