Police are hunting a man after he exposed himself to a 13-year-old schoolgirl.

Brent & Kilburn Times: The man got on the train at Baker Street and followed the girl until she managed to run away when she got off at Kingsbury station. Picture: BTPThe man got on the train at Baker Street and followed the girl until she managed to run away when she got off at Kingsbury station. Picture: BTP (Image: Archant)

The girl, in school uniform at the time, was travelling on a Metropolitan line train between Baker Street and Wembley Park at 10.40 on the morning of Tuesday, July 4.

The man, who got on the train at Baker Street, started staring at the girl before exposing himself.

In fear, the victim got off at Wembley Park and crossed the platform to board a Jubilee line train, but the man followed her and got into the same carriage.

She ran to another before the doors closed and the train pulled away. But, the man stood staring at her through the window between the carriages.

The terrified youngster got off again at Kingsbury but the man did too. She escaped by running out of the station.

DC Marc Farmer said: “No one should be subjected to this. I am pleased the girl had the courage to report it.”

Anyone with information should call 0800 405040 or text 61016 citing 159 of 02/08/17.