A grenade was found near Holocaust Memorial Park in Brooklyn Saturday morning and the NYPD Bomb Squad was called in, authorities said.

The device was subsequently deemed “inert.”

Police responded to a call just before 10 a.m. regarding a “possible grenade” found at the West End Avenue public Holocaust memorial park located at the water’s edge between Emmons Avenue and Shore Boulevard in Sheepshead Bay.

It turned out that a man scouring the bay for odds and ends with a metal detector found the device and called the cops.

“The Bomb Squad deemed the grenade inert,” the NYPD said.