The Pakistani authorities arrested an American national for carrying cartridges in his baggage at an airport in Lahore on Thursday, officials said. Gerry Williams was on board a London-bound flight of the Pakistan International Airlines when 30 bullets were found during search of his baggage, officials said. Williams, 70, was handed over to the area police for questioning as he could not produce any license to carry the ammunition, they said. The U.S. national was a retired principal of a missionary school in Lahore. In June, an American man, Gary Brooks Faulkner, 52, who claimed to be on a mission to hunt down Osama Bin Laden, was arrested in Chitral district in northern Pakistan. Faulkner had a pistol, dagger and a sword and was carrying night-vision equipment as well as Christian literature. He was released after several days after his family said that he had been sick.