A human rights charity accused British troops in Afghanistan yesterday of imprisoning and torturing a man.

Reprieve and Leigh Day solicitors are taking legal action in a bid to force the government to investigate claims that Yunus Rahmatullah was waterboarded, dragged around behind a British military vehicle and beaten until he was unconscious. 

Mr Rahmatullah was released earlier this year after spending 10 years in secret detention at Bagram airbase and Abu Ghraib prison.