Three people died today when a helicopter crashed in a field in Gloucestershire, the Air Accident Investigation Board said Saturday. The private Gazelle helicopter came down and burst into flames near Langley Hill Farm in Winchcombe near Cheltenham, some 150 kilometres west of London, at about midday. Witnesses said there was heavy fog at the time of the crash, but no cause for the crash could be determined as yet. The AAIB said it could not confirm whether there was anybody else on board other than the three deceased. Identities of the victims could not be confirmed.