MYSTERY surrounds what caused the death of former Southampton athlete Donna Hartley-Wass.

A post-mortem was unable to confirm what caused the death of the 58-year-old, who died suddenly on Friday afternoon.

She was found in the back garden of her home by her husband of 26 years, actor and comedian Bobby Knutt.

The Olympic bronze medallist, pictured, had been sunbathing.

Her funeral will take place on Wednesday, in Barnsley, where she was living.