Three people were injured in a raging Brooklyn apartment fire that started in a clutter-filled unit occupied by hoarders, officials said.

The blaze broke out around noon Wednesday on the 10th story at the Ebbets Field Houses at 20 Montgomery St. on the northeast edge of Prospect Park.

Some 75 firefighters responded to the call.

Victims were carted away on stretchers with oxygen masks on. It’s unclear how serious the injuries were.

The residents in the unit where it began appear to be hoarders whose over-accumulation of clutter fueled the smoky fire, a fire official said.