A woman has been arrested on suspicion of murder after a baby died following a fall from a height in central London.
Officers were called to an address on Horseferry Road, Westminster, at roughly 7.30am on Saturday.
The baby girl, 18 days old, was taken to hospital and pronounced dead, the Metropolitan Police said in a statement.
A 43-year-old woman was arrested on suspicion of murder at the scene and taken into police custody, where she remains.
Detective Chief Inspector Alison Foxwell, who is leading the Met's investigation, said the force "believes the incident occurred within a domestic context".
Two forensics officers could be seen working at a window in a flat on the Peabody Estate on Saturday evening.
A police cordon is in place covering most of Great Peter Street, just off Horseferry Road.
Running from Lambeth Bridge to Greycoat Place, Horseferry Road is a major thoroughfare in Westminster.
The street is home to government buildings, including the Department for Transport's offices, as well as Channel 4's headquarters and multiple residential addresses.
DCI Foxwell said in a statement: "Our thoughts today are with the baby's family. The death of an infant is always an extremely tragic occurrence, and officers are making urgent enquiries around the circumstances."
Anybody with information is urged to come forward.
(c) Sky News 2026: Murder arrest after newborn baby dies in fall in central London
Why is Iran's Kharg Island so important and why wasn't its oil infrastructure hit by US strikes?
Man found dead in wheelie bin in Coventry, police say
Book claiming Meghan 'brainwashed' Harry is 'deranged conspiracy', says his spokesperson
Family's anger as hospital unit where father died after surgery mix-up investigated
North Korea fires missiles in response to US military exercise
Rachel Reeves is taking a gamble as the Gulf conflict hits energy prices
What future do you want for Sycamore Gap tree? Vote now on what's next for the felled landmark
England score four first half tries to stun France
