UEFA have banned West Ham fans from attending the club's next away game in the Europa League.
UEFA charged the Hammers following their game against Genk on November 4.
They accused travelling supporters of crowd disturbances and the throwing of objects during their match in Belgium.
West Ham were charged following crowd disturbances during the Europa League tie at Genk
Those charges were upheld by UEFA on Monday.
In a statement, UEFA said 'The UEFA Control, Ethics and Disciplinary Body (CEDB) has announced today the following decision for the group stage match KRC Genk vs.