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A second severed arm was found in Hempstead a half mile from a similar discovery made a day prior—two days after a dismembered woman’s body was found in Bay Shore, police said.

Hempstead village police confirmed that a 911 caller reported finding the second body part on Stewart Avenue near the corner of Cornell Street at 4:30 p.m. Thursday.

Suffolk County police confirmed that homicide squad detectives crossed the county line to respond to the scene, same as they did the day before.

Nassau County police declined to comment, but the department’s homicide and third squad are investigating, authorities said.

The first arm was found near the corner of Webb Avenue and Washington Street at 2 p.m. Wednesday, police have said.

A day before that and 22 miles away, two people walking to the Fire Island ferry terminal found an unidentified dead woman’s partially dismembered body in a vacant lot on the corner of Gilson Street and Maple Avenue on Tuesday morning, police have said.

Suffolk medical examiners are performing an autopsy on the woman’s remains to determine her identity and cause of death. Nassau medical examiners were examining the first arm, although authorities did not say where the second arm was taken. It is unclear if the three sets of remains belong to the same person.

Suffolk police have also said that they dispatched their K-9 units to the Gilgo Beach area as a precaution, but added that they have no evidence of a link between the Bay Shore discovery and the unsolved Gilgo Beach murders.