Authorities say they are on the lookout for a dog that attacked several people, including a child, in southwest Barrie on Monday morning.

Barrie police describe the dog as a “large brown bully-breed dog with a red leash.”

The child sustained serious but non-life-threatening injuries and was transported to a local hospital.

Police say they received the first call for help around 8:45 a.m. about the loose dog in the area of Loggers Run and Essa Road. Around 12:30 p.m., the dog was spotted near Tiffin Street and Ferndale Drive.

Around the same time, police advised  residents in the area to remain in their homes while the search for the dog continued.

In an update around 4:30 p.m., police said the dog remains on the loose, but has not been seen since about noon.

According to the Simcoe County District School Board, Ferndale Woods Elementary School is under a hold-and-secure order.