Uefa has handed Chelsea a fine of 13,000 euros (£11,100) for the actions of their fans during the Europa League match away to Malmo in February.
Chelsea and Malmo were both charged by Uefa following supporter unrest during the first leg of their Europa League last-32 tie on February 14, which the Blues won 2-1.
Chelsea were charged over field invasions by their supporters, and Malmo for setting off fireworks, while both clubs were charged with the throwing of objects by their fans.
Malmo supporters appeared to launch plastic beer cups at fans in the away end early in the first half. Police had to move in to calm down the situation and when they left there was an increase in the number of stewards put in place between the fans for the rest of the game.