BROOKLYN (PIX11) — A man was fatally shot in the back and a woman was injured when gunfire broke out at a Halloween party in Brooklyn Sunday morning, police said.

Authorities responded to the shooting at 1006 Atlantic Ave. at around 6:20 a.m. and found a man with a gunshot wound to the back, police said. He was pronounced dead at the scene.

A woman was also shot in the elbow and was taken to the hospital in stable condition, police said.

It’s unclear what prompted the shooting. There have been no arrests.

Anyone with information in regard to this incident is asked to call the NYPD’s Crime Stoppers Hotline at 1-800-577-TIPS (8477) or for Spanish, 1-888-57-PISTA (74782). The public can also submit their tips by logging onto the CrimeStoppers website at https://crimestoppers.nypdonline.org/ or on Twitter @NYPDTips.