* Death of man, 39, initially attributed to hanging * UK Foreign Office said to be in touch with man’s wifeA British man has died while being held in US immigration detention in Florida, the Guardian has confirmed.The death was first reported by BuzzFeed News, which said the man was 39 years old and that the cause was initially attributed to asphyxiation due to hanging. The incident was reported to have occurred on Saturday last week.“Our staff are in contact with the US authorities following the death of a British man in Florida,” said a spokeswoman for the Foreign Office in London.Foreign Office officials are understood to have been in contact with the deceased man’s wife, as US officials investigate the circumstances of the death.It was unclear which of Florida’s four detention centres the man was held in, and Immigration and Customs Enforcement (Ice) did not respond to requests for comment.The incident marks the fifth death at a detention centre in the 2020 fiscal year, which begin...