Police arrest woman, 43, after investment banker's three 'disabled' children - twin boys aged three and their four-year-old sister - are found dead in their £1.2million London home

A 43-year-old woman has been arrested on suspicion of murder after three children all believed to have a 'life-limiting genetic disorder' were found dead in a large detached house in a London suburb. The £1.2million property in New Malden, south London, has been sealed off with forensics officers removing bags of evidence through the night. Neighbours said that the South African couple living there, named locally as Gary and Tania Clarence, had four children, but three were unwell and required the full-time care of their mother. Police were called to the house in Thetford Road at 9.30pm yesterday, where the young family had moved in around a year ago after a major refurbishment. Pictured left is Mr Clarence with his twin boys.