An 18-year-old woman has been left shaken after she was assaulted while travelling on a bus through St Albans.

Detectives are appealing for witnesses following the incident which took place between 3.30pm and 3.58pm on Thursday, November 28.

The teenager was standing on the lower deck on the 601 Uno bus on Hatfield Road when a man approached her and assaulted her. He followed her off the bus in St Albans city centre but then walked away in the direction of the Blacksmiths Arms.

He is described as a white man, aged between 16 and 19, of slim build and between 5ft 5ins and 5ft 8ins tall. He had light brown, short spiked hair and was wearing a navy coloured t-shirt and grey tracksuit bottoms.

It is believed the attacker boarded the bus at the stop outside Morrisons on Hatfield Road.

Detective Constable Paul Cullinan said: “The victim has understandably been left shaken by this incident and we are doing everything we can to trace the identity of the offender.

“This happened at a time when the bus would have had other people on board. I would appeal to anyone who may have seen this man, know of his identity, or witnessed the assault to contact me as soon as possible.

“If anyone believes they saw the man board or exit the bus they should contact me as they may have vital information that could assist the investigation.”

Anyone with information should contact Det Con Cullinan via the Herts Police non-emergency number 101, or call Crimestoppers anonymously on 0800 555 111.