"Manchester City" fans are unhappy with the increase in ticket prices from next season.
Season tickets will increase in price by 5% on average.
Ahead of the Premier League home game with Arsenal, a group of "city dwellers" fans protested against the price hike, posting "Record prices at record profits. Stop cashing in on our devotion" poster in the stands.
However, according to the fans, the stewards working at "Etihad Stadium" removed the flag from the stand and confiscated it.
Club officials later said the items would be returned to their owners, but they had to be removed because they blocked the billboard and part of the scoreboard.