Tommy Robinson, 42, allegedly assaulted a man at St Pancras station in London last week - with viral footage showing the apparent victim lying unresponsive on the floor.

Footage posted on social media this week appeared to show the man lying unresponsive on the London station concourse while Robinson paced around him.

Tommy Robinson, 42, allegedly assaulted a man at St Pancras station in London last week - with viral footage showing the apparent victim lying unresponsive on the floor.

Far-Right activist allegedly assaulted a man at St Pancras station in London last week before flying to Tenerife

Far-Right activist detained at Luton airport in relation to incident that left man with ‘serious’ injuries

The 42-year-old was taken into custody by officers after a plane he boarded in Faro landed in Britain.

Video posted online showed the far-right activist near a man lying on the ground at St Pancras station

British Transport Police said an arrest had been made at Luton Airport

The 42-year-old was detained by the British Transport Police after disembarking from a flight from Portugal.

The activist, whose real name is Stephen Yaxley-Lennon, was arrested at Luton airport on Monday

The 42-year-old was filmed being arrested on the Tarmac at Luton Airport on suspicion of grievous bodily harm last night.

Far-right activist was detained at Luton airport on Monday a week after incident at St Pancras station in London

42-year-old had been arrested at Luton airport on suspicion of grievous bodily harm after incident on July 28