The mother of the deceased children arrested on Wednesday has been charged with murdering the children who were found dead at a house in south-west London
According to a BBC report, Tania Clarence, 42, a South African national has been charged in relation to the deaths of a four-year-old girl and three-year-old twin boys.
The children were named as Olivia, Max and Ben Clarence in a statement released by solicitors.
Mrs Clarence is due to appear at Wimbledon Magistrates’ Court on Friday.
Scotland Yard said post-mortem examinations on the children started at Great Ormond Street Hospital earlier on Thursday and were continuing.
The children had the life-limiting genetic disorder Spinal Muscular Atrophy.
Their father, Gary Clarence, a director at City bank Investec, was on holiday with members of his family in South Africa when UK authorities told him about the deaths of his children.