Police say they discovered a human body part in a bag in Cyprus Hills around 3:30 p.m. on Monday.
Officers were responding to a call on Jamaica Avenue when they found the remains, which they said appeared to be a human leg.
There have been no arrests and the investigation remains ongoing.
On March 3, a woman's body — missing a head, arms and legs — was found in a garbage bag in a shopping cart at a Brooklyn intersection.
Law enforcement sources say a person walking by the intersection of Pennsylvania and Atlantic avenues around 1:45 a.m. made the discovery near a pawn shop and other small businesses, and called 911.
So far, investigators have not said if the two incidents are connected.