A police officer at the Trafalgar Square Thatcher protests has been captured on camera telling members of the public that the crowd had been infiltrated by Millwall football fans.
The officer goes on to say that the fans had been causing fights and were throwing bottles - earlier reported to be filled with urine.
Moments later, people are seen throwing bottles at the police and the crowd.
More top news
It will become increasingly wet and windy across parts of Scotland and Northern Ireland across the next few days.
A police helicopter went on a 40-mile search after a 999 call about a cry for help - only to discover it was a goat and her kid.
A boy from Manchester was excluded from taking part in World Book Day for dressing at Fifty Shades of Grey character.