A man has been stabbed after reports of a “mass brawl” at Westfield shopping centre in Stratford.
Police rushed to the scene at around 6.15pm on Friday to reports of a fight near the east London station, which opens out into the shopping complex.
A second man was found suffering head injuries, police said.
According to one witness, there was “blood all over the floor” while another photograph shows police officers surrounding a figure who appears to be slumped on the floor.
Several other people are seen standing nearby speaking with police.
Hollie Rose said on Twitter: “Imagine getting locked in a store in Westfield only to come out to find blood all over the floor and police everywhere.”
Another passerby, Justin Dealey, said online: “Thought I would come to Westfield Stratford for a change. Within minutes I’ve seen a mass brawl in the shopping centre.”
A spokesman for the Met Police said the stab victim has been taken to hospital. His condition is not yet known.
The man who was found with head injuries is not thought to be in a serious condition.
A man has been arrested nearby on suspicion of GBH and possession of an offensive weapon.
The Met added: “Enquiries into the circumstances continue.”
Earlier this month the shopping centre was the scene of a major swoop by counter-terror police who seized weapons including a knife, hammer and imitation gun.
Stratford station has been closely monitored for months by officers with the British Transport Police, with the shopping centre thought to be a potential terror attack target.