Four arrests as Arsenal match delayed amid crowd disorder

Soccer Football - Arsenal vs 1. FC Koln - Emirates Stadium, London, Britain - September 14, 2017 General view of fans and a rainbow outside the stadium REUTERS/David Klein

LONDON (Reuters) - Arsenal's Europa League group stage match at home to FC Cologne was delayed by an hour on Thursday, with four arrests made for public order offences after extra police had to be deployed at The Emirates Stadium in north London.

British media said 20,000 Cologne fans had made their way through London towards the ground despite only 3,000 tickets being allocated to the German club, who were playing in European competition for the first time in 25 years.