(Berrien County, MI) - A woman is missing after going into a body of water in southwest Michigan for the sake of her son.

The 42-year old woman at around 6:30 p.m. Sunday entered the St. Joseph River believing her eight year old son was having difficulties, according to Berrien Springs Oronoko Township Police.

She went missing while her son was later found on an island in the river by Berrien Springs Oronoko Township firefighters on a rescue boat. The boy was treated at a hospital in Niles before later being released.

The woman had been in the area with her children before entering the water.

Police said further information will be made available at a later time.