Eyewitness Gareth Milner said he was eating his lunch on the wall outside the Home Office when “a number of armed police officers arrived on scene and entered the building”.
“Some time later a gentleman with quite a bloodied face and with dressing pressed into his face was escorted out of the Home Office by paramedics,” said Milner, who works nearby for the Centre for Policy Studies think-tank.
“He was quiet and walking on his own feet, not being physically supported,” he added.