Police are investigating three swastikas scrawled in black marker on a Brooklyn sidewalk, officials say.

The graffiti was found Tuesday morning on the corner of 49th Street and 10th Avenue in Borough Park, authorities said.

The hate crimes task force is investigating.

Tuesday's discovery follows a series of similar incidents in the predominantly Orthodox Jewish neighborhood. Last month, at least six swastikas were found spray-painted on several buildings in the area, including a synagogue.

Last month's graffiti was also found on a school, deli and other businesses. Graffiti removal trucks were sent to the area and the swastikas were removed.

Mayor Bloomberg blasted the vandals at the time, saying in a statement, "there is no place for acts of hate in New York City." NBC New York