(BBC News) A mother drowned her toddler twins in a "narcissistic rage" after her marriage broke down, a court has heard.
Samantha Ford, 38, killed 23-month-old Jake and Chloe on Boxing Day last year after their father Steven Ford left her.
A psychiatrist told a judge she had killed them in an act of "retaliation and punishment" against Mr Ford.
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Mr Justice Edis will sentence Ford on 16 August after hearing further psychiatric evidence at the Old Bailey.
Prosecutors previously accepted a guilty plea to manslaughter by diminished responsibility.