Detectives are hunting a sex attacker who seriously assaulted a girl.

It happened early on Sunday at the lower end of Montpelier Road, Brighton.

After the incident a man walked the young girl along the seafront and then along Kingsway towards Hove Lagoon.

She then flagged down a taxi driver in New Church Road, Hove, at 4am who drove her to Pelham Street, Brighton.

Police said the girl was £2 short of the £7 taxi fare.

They are appealing for the taxi driver or any witnesses to contact Brighton CID on 0845 6070999.