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PHILADELPHIA (CBS) — Philadelphia police say a homeowner made a startling discovery on Wednesday morning in a home he bought in the Germantown section of the city.

The man told police he found a grenade in the basement of his home on the 6300 block of Burbridge Street shortly after 9:30 a.m.

Police say they have confiscated the device and the all clear was given.

No one was injured in the incident.