A British resident detained at Guantanamo Bay for more than four years has arrived back in the UK. Ethiopian-born Binyam Mohamed, 30, landed at RAF Northolt in London on Monday afternoon, accompanied by Metropolitan _44970322_449458291Police officers. Mr Mohamed says he was tortured while in custody on suspicion of terrorism. He said in a statement the worst moment of his captivity was when he realised his alleged torturers were receiving material from UK intelligence agents. Foreign Secretary David Miliband said his release was the first step towards the goal of closing down the Guantanamo Bay detention camp. He landed at 1300 GMT and walked to the terminal building surrounded by officials.