The NYPD is investigating after a woman was shot in the head and killed on a Brooklyn Bridge Park sidewalk.

Around 9:30 p.m. on Monday, police arrived at Brooklyn Bridge Park after a report of a crime involving a gun, authorities reported. In the area of Joralemon and Furman streets, they found 23-year-old Michelle Marks of Brooklyn dead with a gunshot wound to her head. 

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Police told NBC4 that they were unsure if the shooting was tied to a robbery or if it was random.

No arrests have been made and the investigation was ongoing, according to police.

Anyone with information should call the NYPD Crime Stoppers hotline at 1-800-577-TIPS or, for Spanish, 1-888-57-PISTA. The public can also submit their tips by logging onto the Crime Stoppers website at www.NYPDcrimestoppers.com.