<p><br /> British Transport Police are appealing for information following the violent assault of a young woman at a railway station in north London.<br /> </p><p><br /> CCTV has been released in a bid to track down the man responsible for the incident, which happened at around 3.50pm on Sunday June 27.<br /> </p><p><br /> Investigating officer Detective Inspector Andy Rose, said: "This was a shocking assault that involved an act of extreme violence towards a young woman in broad daylight. I strongly urge anyone who thinks they can help identify the man pictured to come forward and speak to us."<br /> </p><p><br /> The woman, 27, was targeted after she asked the man to stop tapping a beer bottle loudly on a bench next to her at Harrow & Wealdstone Station. Both then boarded a northbound London Overground service, with the man following the victim off the train at Carpenders Park Station.<br /> </p><p><br /> The victim passed through the ticket barriers and was then followed by the man along the ramped footpath and then left to a set of stairs leading to a parade of shops.<br /> </p><p><br /> As she reached the stairs, the man ran from behind her and punched her once in the face, which left her with a broken nose and serious facial bruising.<br /> </p><p><br /> Anyone with information is asked to call British Transport Police on 0800 40 50 40 and quote incident number 320 or call Crimestoppers on 0800 555 111.<br /> </p>