Security forces in Bangladesh have arrested the head of a British charity two weeks after weapons were found at a school that his charity allegedly funded.

The family of Dr Faisal Mostafa, who runs the Stockport-based Green Crescent charity, had said he was held in the capital, Dhaka, last Wednesday. But yesterday Bangladeshi authorities presented Dr Mostafa, 45, at a press conference, saying his whereabouts had been unclear since 24 March, two days after the weapons cache was found.

Officials said Dr Mostafa had been arrested in Gazipur, 40km (25 miles) north of Dhaka on Monday, with the unnamed local co-ordinator of the Green Crescent charity. Last Wednesday, Dr Mostafa's father, Golam, told the Bangladeshi Daily Star he had been phoned by relatives in Dhaka and told his son was being held there.

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Security officials said 10 guns, 3,000 rounds of ammunition, and 2,500 parts for grenades were found in the Islamic school, or madrassa.