1.   Crowd violence has been kept in check in England since then, but, recently, field invasions have become more common.

2.   Division three Brighton had a field invasion by the fans but this time it was a peaceful one.

3.   The field invasions have become a menace during the World Cup with the English groundstaff allowing fans free access, unlike in the subcontinent where spectator galleries are fenced.

4.   The field invasions were the worst security incidents during the Belgian season so far.