A 51-year-old man was fatally shot multiple times in the chest in a Brooklyn building lobby, cops said Sunday.

The man, whose identity wasn’t immediately released, was gunned down in the lobby at 250 Wortman Avenue in the Linden Houses around 9:40 p.m. on Saturday, according to police.

He was rushed to Brookdale Hospital where he died, police said.

There were no arrests.

Four shell casings were found on the scene.