Attacker may have followed victim

Police have stepped up patrols in a Cambridgeshire city after a woman suffered a serious sexual assault.

The 18-year-old woman caught a train from Cambridge to Ely in the early hours of Saturday after a night out.

Cambs Police believe the attacker may have been on the train and followed her after she got off at Ely station, before attacking her on Cromwell Road.

They urged passengers who saw a man in his early 20s, with a dark complexion and possibly long hair to contact them.

The man was wearing a light-coloured hooded jumper and trainers.

The woman was travelling on the 0015 GMT train from Cambridge bound for King's Lynn in Norfolk.

A police spokeswoman said officers had searched the area around where the woman was attacked and have stepped up patrols.