A 17-year-old boy was gunned down inside a Brooklyn housing development late Sunday, cops said. 

Raymond Matthews was shot multiple times in the chest around 7:45 p.m., while in the third-floor hallway of the building on Stanley Avenue near Vermont Street, part of NYCHA’s Lincoln Houses, police said.

Matthews, who lives at a different address in the same complex, was rushed to Brookdale University Hospital Medical Center, where he was pronounced dead, authorities said. 

No one had been arrested by Monday morning. 

The circumstances of the slaying were not immediately known.