Violence erupts at London derby
West Ham fan confronting steward
West Ham fans invaded the pitch after their equaliser
A man has been stabbed in the chest during violence involving "hundreds" of fans outside West Ham's Upton Park stadium during a game with Millwall.
Fights broke out at 1915 BST and were still raging more than an hour later. A 44-year-old man is table after being stabbed in Priory Road at 2025 BST.
A Metropolitan Police spokesman said: "It looks like there has been some planned trouble from fans."
Inside Upton Park West Ham fans invaded the pitch after their team scored.
It took officials about six minutes to clear the pitch and police had to redeploy within the stadium to stop the invasion.
The Met spokesman added: "Hundreds of fans are estimated to be involved."
It was like a war zone - there was fighting all around
Millwall fan
One pub reportedly had its windows broken by bricks during running battles across several streets up to half a mile from the stadium.
Five arrests have been confirmed, including one for affray and one for breaching a banning order.
British Transport Police said they heard reports of minor overcrowding at Upton Park Tube station.
BBC radio reporter Ben Jacobs, who is at the stadium, said he had heard a second person had been stabbed, although police said they had no confirmation of this.
Mr Jacobs also said Millwall fans will be kept inside the stadium for 30 minutes after the game.
Describing how the violence erupted, Mr Jacobs said: "The trouble broke out outside the Tube station about 600 yards from the ground.
"There were 500 to 1,000 riot police and Millwall fans managed to break through the divide.
"Bottles were thrown and bricks were as well."
He added: "There has been a bit of trouble inside the ground.
"There was a penalty shout and fans started gesturing and throwing small objects."
'Burly bald man'
Aaron Smith from Hemel Hempstead, who was at the game, said: "I saw one man cornered by at least a dozen Millwall fans before kick-off. Terrifying scenes."
Eyewitness Fergal O'Brien said: "I saw a West Ham fan getting punched in the face by a burly bald man who had a coin between his fists."
Another fan said: "I was in a throng walking up and a group of hooligans came for us.
"The police wanted to help but they were clearly afraid to use force. I am still shaking. I thought I was going to die."
Ben Newton, from Harrow, north London, said his father had been stretchered away after being hit with a dart to the head.
And a Millwall fan told the BBC: "It was like a war zone outside the stadium. There was fighting all round.
"I brought my kids with me tonight and they've seen some violence that is indescribable."
"There were 500 to 1,000 riot police and Millwall fans managed to break through the divide. 
Ostale teme
