A mother will appear by videolink at the Old Bailey today accused of killing her baby son and daughter.
Felicia Boots is accused of murdering 10-week-old Mason and his one year old sister Lily at the family home in Wandsworth last week.
The children were found unconscious by their father, Jeff Boots, when he returned home from work last Wednesday.
Emergency services were unable to revive the children. A formal cause of death has not been confirmed but the children are thought to have been suffocated.
Mrs Boots, who trained as a hairdresser, was arrested at the semi-detached home in Killarney Road.
She was remanded by magistrates in Battersea on Saturday and will appear by videolink to allow any bail applications to take place.
Mr Boots, an investment banker, and his wife are understood to have moved to the UK ia few years ago from Canada.