A woman has been arrested on suspicion of murder after three children were found dead at an address in south-west London according to a BBC report.
The three children are, a girl aged 4 and two boys aged 3.
A police spokesman said officers had been called to an address in New Malden on Tuesday night where the bodies of the youngsters were found.
The 43-year-old remains in custody and officers are not looking for anyone else in connection with the incident.
Police are currently not giving any details on the cause of the deaths.
BBC London 94.9’s Jason Rosam said neighbours told him the family had recently moved into the house and there is a suggestion some of the children had disabilities.
He also said people in the area were “shocked and confused” by the deaths and that several evidence bags had been removed by officers from the property.
A neighbour, who did not wish to be identified, said the family were originally from South Africa and had moved into the the large semi-detached house with their four children a year ago.
She said the three younger children were suffering from genetic disorders – believed to be life-limiting – but the eldest child, thought to be around seven or eight years old, was in good health.
“They are a very, very lovely couple. I saw them all the time about with their children,” she said.