A pre-season friendly between Premier League outfit Burnley and Bundesliga side Hannover 96 at Turf Moor was abandoned at half-time on Saturday due to crowd trouble.
Burnley's official Twitter account said the game was called off "on police advice."
BBC Sport reported the trouble started in the Hannover supporters' section during the first half.
Sportsbeat's Andrew Greaves posted footage of the encounter between those in attendance, although it's not clear from the video which group of fans appear to be the instigators:
BBC Sport also provided images from Turf Moor, where police were called into action to keep the supporters apart in what should have been a friendly fixture:
BBC SportMore on the news that Burnley's friendly at home to Hannover has been abandoned because of crowd trouble.