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

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