Footage has emerged of Stoke City fans trashing the toilets at Port Vale during the Checkatrade Trophy match on Tuesday.
Potters fans can be seen wrecking one of the toilets by ripping ripping off pieces of the sinks and launching them through the windows.
Trouble marred the Potters derby, with Port Vale triumphing 4-0 against their rivals' Under-21s.
It was the first contest between the sides since 2002, with tensions spilling over between the rival supporters.
Some Stoke fans covered their faces with scarves as they tore apart the stadium facility.
Broken glass spilled out to the space outside, with the fans singing songs, revelling in the damage inflicted.