Airplanes on the runway of John F. Kennedy International Airport...

Airplanes on the runway of John F. Kennedy International Airport as a boater passes by on the waters of Head Of Bay, located in Queens. (Aug. 13, 2012) Credit: Uli Seit

An inert grenade sparked the evacuation of Terminal 4 at Kennedy Airport Thursday, officials said.

The all-clear sign was given at about 4:50 p.m., a spokesman for the Port Authority said.

The paperweight was found in a passenger's baggage, a law enforcement official said.

Another official said that a man who flew from Tel Aviv to Moscow and then to Kennedy Airport, was clearing U.S. Customs when the inert grenade -- used as a paperweight -- was discovered in his baggage.

The man told authorities that the grenade was given to him as a gift when he volunteered at an Israeli military base, the official said.

Pfc. Raheen Tyson Heighter, of Bay Shore, was killed in Operation Iraqi Freedom. His mother has made it her mission to aid active-duty service members, veterans, first responders and Gold Star families. NewsdayTV's Virginia Huie reports. Credit: Randee Daddona; Photo credit: Cathy Heighter

'His sacrifice made a difference': Gold Star mother honors son's memory Army Pfc. Raheen Tyson Heighter, 22, of Bay Shore, was the first serviceman from Long Island killed in the Iraq War.

Pfc. Raheen Tyson Heighter, of Bay Shore, was killed in Operation Iraqi Freedom. His mother has made it her mission to aid active-duty service members, veterans, first responders and Gold Star families. NewsdayTV's Virginia Huie reports. Credit: Randee Daddona; Photo credit: Cathy Heighter

'His sacrifice made a difference': Gold Star mother honors son's memory Army Pfc. Raheen Tyson Heighter, 22, of Bay Shore, was the first serviceman from Long Island killed in the Iraq War.

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