LONDON (Reuters) - Italian aerospace company Leonardo SpA LDOF.MI said on Sunday it was ready to help an investigation into the crash of one of its AW169 helicopters at Leicester City soccer club on Saturday, adding that it was the first accident involving the aircraft.

Leicester City owner Vichai Srivaddhanaprabha, a Thai tycoon, was among five people on board the helicopter that crashed and then exploded after a Premier League match in the English city on Saturday, according to a source close to the club.