A New Malden mum has denied murdering her three disabled children.

Tania Clarence, 42, pleaded not guilty to three counts of murder at the Old Bailey today but admitted manslaughter.

Olivia, 4, and twins Ben and Max, both 3, are believed to have died at some point between Sunday, April 20 and Wednesday, April 23 at their home in Thetford Road.

All three children had spinal muscular atrophy, a life-limiting disease.

Mr Clarence, an Investec executive, is understood to have been on holiday with their eldest child in his native South Africa at the time.

The family had moved to New Malden about a year before from Durnsford Avenue in Wimbledon.

A provisional date for a trial was set for February 23 next year.