A officer with Mayor Bill de Blasio's security detailwas hit in the back with a BB or pellet on Sunday evening outside of Gracie Mansion, police said.
De Blasio was not home during the alleged attack, police said.
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The officer was hit in the back, treated for minor injuries at Lenox Hill Hospital and released.
Two people were being questioned, and the NYPD said there have been two recent incidents of pellets hitting windows in the area.
A SWAT team entered nearby 170 East End Avenue, where the shots were apparently fired, and a man was heard yelling “F-- de Blasio,” according to the Daily News.
There were no arrests on Monday morning, an NYPD spokeswoman told Metro.