Nigerian oil workers released

British police are frantically searching for evidence of what security sources fear is a plot to unleash sarin nerve gas or another deadly agent. But two British men arrested at their home on Friday vehemently deny any involvement in terrorism. One of them is recovering from a gunshot wound in a London hospital. News24 reports that their neighbours defended the brothers, whom they described as devout Muslims, and accused London's Metropolitan Police of heavy-handed tactics against the Muslim community. The police have extended their search to the suspects’ London workplaces, which press reports said were the Royal Mail postal service and a Tesco supermarket.