The police response led to the execution of a search warrant on the home the teen shares with his parents in the 400 block of East Oak Avenue.
Inside, authorities say they found a lab in the basement with materials for explosive devices.
"He had a lab in the basement that had additional explosive material, so that was removed because of the volatility of that material that was denoted in their backyard," said Moorestown's Director of Police, Patrick Reilly.
Explosives lab found in basement of teen's home in Moorestown, police say
The boy turned 18 over the weekend, when he allegedly joined fellow teenagers in igniting bombs in the backyard of someone else’s home in Moorestown, according to police.
“I thought there was an earthquake or something,” neighbor Soujanya Gamini told ABC 6 of the explosions that rocked the Cove Road area.
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Reilly said the case is being handled by the FBI, with the Burlington County Prosecutor’s Office mulling what charges, if any, will be filed against the suspect.
Bomb lab found in basement of New Jersey teen who offered his expertise to help fellow students detonate explosives