Fights break out in Trafalgar Square ahead of Friday's world cup qualifier
Blood pouring from one fan's leg covered a Saltire flag as paramedics attended a concussion, while at least one fan was taken by ambulance from the scene where thousands of Scotland fans had gathered.
Scuffles have broken out in Trafalgar Square on Armistice Day as thousands of football fans descended on the capital ahead of the England v Scotland World Cup qualifier.
Blood pouring from one fan's leg covered a Saltire flag as paramedics attended a concussion, while at least one fan was taken by ambulance from the scene where thousands of Scotland fans had gathered.
Blue flare smoke hung in the air and the sound of breaking glass could be heard, as police pulled away a group of England fans who looked ready to fight with a handful of Scotland supporters.
About 14,000 Tartan Army supporters were expected to flock to London for the sell-out game at the 90,000-capacity Wembley stadium which kicks off at 7.45pm on Friday.
Fans in the central London square sang songs and waved flags, with many climbing onto Nelson's Column and chanting.
There had been no arrests as of 4.30pm, the Metropolitan Police said, but there was a considerably increased police presence in the square.
Public toilets had to be closed at 4.30pm due to deliberate damage such as equipment being kicked and tiles being pulled off, police and workers said.