An urgent appeal has been made to help trace the mother of a five-year-old girl who was found alone at a bus stop.
The child was spotted sitting on a bench near Brighton Station in Brighton, East Sussex, at 12.52pm on Friday.
She had arrived there on a train from London with a woman believed to be her mother at around 12.30pm.
CCTV footage shows the pair visiting a toilet in the station before walking into the city along Queens Road, Sussex Police said.
But minutes later, members of the public spot the girl sitting alone on a bench at a bus stop near an Ibis hotel, close to the station.
Detectives have made an urgent appeal to find the woman amid fears for her welfare. They said they were "extremely concerned" for her. Meanwhile, the girl is being looked after by police officers.
Detective Inspector Lee Horner said: "We have looked at CCTV and traced the woman and the girl along Queens Road to the area of the Ibis, where we lose them.
"The girl then ends up back at the bus stop about 100m south of the station. We don't know if she returned by herself or whether she lost mum there."
The woman is black, with dark curly hair and aged in her mid 30s. She is around 5ft 9in tall, is wearing a flowery black top and black trousers. She was carrying a red or pink backpack.
Mr Horner said: "We are appealing to the woman identified to urgently get in touch or did you see this woman at the station or have you seen her in town? We are extremely concerned and anxious to find her and check on her welfare."
Anyone with information is asked to call 999.