The assault took place on a Northern Line tube (Image: PA Wire/Press Association Images)
A terrified female passenger was sexually assaulted in a northern line train carriage by a man with his face covered and wielding a baseball bat.
Police have appealed for witnesses to the incident which happened on the Edgware branch between Chalk Farm and Belsize Park on February 4 between 5:30 and 6pm.
They have put posters up at tube stations around the area.
A poster at Hampstead Tube station reads: “A male who had his face covered and was carrying a baseball bat sexually assaulted a female on board a northbound Northern Line train, Edgware branch.”
Witnesses should contact British Transport police on 0800405040
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