A mother has appeared in court charged with two counts of murder after the deaths of her two children in south-west London.
Mason, a 10-week-old boy, and his 14-month-old sister Lily were found dead in the family home in Killarney Road, Wandsworth, on Wednesday evening.
Felicia Boots, 34, was remanded in custody until Tuesday by South Western magistrates.
Post-mortem tests have so far given no formal cause of death for the children.
More examinations are planned. Police officers believe the children were smothered.
Ms Boots was charged with murder in the early hours of Saturday.
She was remanded to appear at the Old Bailey.