A man has been arrested at Heathrow Airport over an alleged attack at Finsbury Park tube station which sparked a dramatic manhunt by armed officers across the London Underground network this afternoon.

The search began after police were called to Finsbury Park at around 1:45pm to a 63-year-old man with cuts to his face and body who was allegedly attacked on the platform by a suspect armed with a blade

The victim was taken to hospital and armed officers from British Transport Police (BTP)spent the afternoon searching London underground.

At one point they swarmed onto a Victoria Line train at King’s Cross.

Reports and video footage of the incident were tweeted by passengers: https://twitter.com/elliematthew18/status/631105997310947328

The incident caused severe delays on the Victoria Line.

A BTP spokesman said: “Officers attended the southbound Victoria line platform, alongside colleagues from the London Ambulance Service. A 63-year-old man was taken to hospital with cuts to his body and face.

“Armed BTP officers searching for a possible suspect met a southbound Victoria line train at King’s Cross St Pancras Underground station and conducted a search of the train.”

The spokesman tonight confirmed that officers arrested a man at Heathrow Terminals 1,2,3 underground station on suspicion of grievous bodily harm. They added that the man was taken into custody and will be quizzed by detectives in due course.

Anyone with information should contact British Transport Police on 0800 40 50 40, or text 61016, quoting background reference T/B9 of 11/08/2015.

Or call Crimestoppers anonymously on 0800 555 111.