article_snippet: AEK fans light flares during the game in the Greek cup against Olympiakos .
article_snippet: Some AEK supporters broke onto the pitch, with one appearing to throw a flare at an Olympiacos player .
article_snippet: A few home AEK supporters then invaded the pitch at the Athens Olympic Stadium, and one threw a flare at celebrating Olympiacos players.
highlights_snippet: But AEK supporters reacted aggressively and some got on to the pitch .
  