The owner of Bordeaux's Château de La Rivière has died in a helicopter crash while flying over his newly-purchased estate.

Chinese businessman Lam Kok, together with his 12-year-old son and an interpreter, were aboard the helicopter, which was being piloted by the former owner of the estate, James Grégoire. The cause of the accident, which occurred on Friday (20 December), has yet to be established.

The sale of the estate had been competed the previous day. The estate has around 60 hectares of vineyards producing AOC Fronsac wines.

In 2002, the former owner of Château de La Rivière, Jean Leprince, was killed in a light aircraft accident.