An employee at a courthouse in Queens sparked a brief scare on Thursday afternoon after authorities said he brought a gag grenade into the building, authorities said.
The NYPD says its bomb squad was called to the courthouse in Kew Gardens after a 22-year-old brought the faux device through security.
Authorities said the man may have been an intern pulling a prank.
No injuries were reported, and the man is being questioned by police. No charges have been filed in the case.