A man has been charged with murdering his four-year-old daughter.
Carl Wheatley, 30, is due to appear at Hatfield Magistrates' Court today over the killing, Hertfordshire police said.
Alexa-Marie died in hospital after police were called to the family home in Queen Bee Court, Hatfield, at 9.30pm yesterday.
A post-mortem to establish the cause of death will take place on Monday, the force added.
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Police and emergency services are attending the scene.
Rebel-held east remains at risk while the pumping station supplying the western part of the city is once again in operation.
Police chief says the video can now be release without 'adversely impacting' the investigation.