A German man wearing a burqa and carrying a pistol was arrested in Bannu on Monday.
"A German man, wearing a burqa, was intercepted at a checkpost in Bannu while coming from Miranshah with a six-year-old girl," local police station chief Farid Khan told AFP.
Two tribesmen travelling with him in the vehicle were also detained, he said.
A pistol was also recovered from the man and he was handed over to an intelligence agency for further investigation, Khan said.
An American construction worker armed with a pistol and sword was arrested last week in the mountains of Chitral who purportedly told police he was on a mission to hunt down and kill Al-Qaeda chief Osama bin Laden.
Tribal areas bordering Afghanistan and adjoining northwestern districts are out of bounds for foreigners and they require special permission to visit these areas.
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