After Allegany County authorities were notified that the Mark 1 rocket on display in Cumberland might be live, the state fire marshal's office and the FBI confirmed it was. Bomb experts removed the ordnance and rendered it safe.

The 48-inch-by-2.75-inch rocket was similar to those used on helicopter gun ships during the Vietnam War, said Deputy State Fire Marshal Joseph Zurolo Jr. A local veteran donated it to the museum, which is in a chapter of the Vietnam Veterans of America, Zurolo said.

Authorities are investigating how the man came to possess the live ordnance.

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