A 47-year-old woman and a 14-year-old boy suffered burns to the body in a fire overnight that broke out at a multi-unit apartment building in the Back of the Yards neighborhood, officials said.

Shortly before 1:30 a.m., firefighters were called to the 4700 block of South Wolcott Avenue to an apartment complex. A woman, 47, suffered burns to the body, and was taken in critical condition to Stroger Hospital, police said.

A boy, 14, also suffered burns to the arm and was taken to the same hospital in fair condition.

No other injuries were reported during the fire, and the Chicago Fire Department was investigating.