Peel regional police has set up a command post in Mississauga in the hope of identifying a suspect in connection with a brutal assault.
Researchers at the Special Victim's Unit say that a young girl in her bedroom in the Hartfield Grove and Warren Drive area fell asleep when she woke up to find a man in her room around 07: 00 on Saturday morning.
The man mistreated the girl sexually before leaving the house.
The girl was taken to the hospital for review.
The suspect is described as white and about 20 years old.
Anyone with information is asked to contact the police or Crime Stoppers.