Two baby sisters are seriously ill in hospital after an apparent fox attack at their home.
Police said the nine-month-old twins were in a "serious but stable" condition after being hurt while sleeping in their cots on Saturday night.
Officers and paramedics were called to a house in Stoke Newington, north London, to reports that the animal had attacked the pair.
The little girls are being treated at the Royal London Hospital.
They both reportedly suffered arm wounds and one of the girls was believed to have facial injuries.
The fox was believed to have been in an upstairs room.
A Scotland Yard spokesman said: "The incident is not being treated as suspicious.
"We were called to reports of a fox attack. Officers and the ambulance found two girls with injuries."
In 2002, mother Sue Eastwood claimed her baby boy, Louis, was left injured after a fox crept into their house while she slept.
The fourteen-week-old suffered bite marks on his head after the animal darted into the sitting room of the house in Dartford, Kent.