The son of a woman who was kidnapped and murdered 55 years ago has visited the site where she is believed to be buried.

Muriel McKay was taken from her home in Wimbledon Village in 1969 for a £1 million ransom.

The wife of newspaper executive Alick McKay, she was mistaken for Anna Murdoch, the then-wife of media mogul Rupert Murdoch.

Her son, 82 year old Ian McKay, has travelled from Australia to Hertfordshire as police continue the search for her body.