Swansea have described the damage caused to the Liberty Stadium during the South Wales derby at the weekend as "totally unacceptable".
Thousands of pounds worth of damage, which has been blamed on the travelling Cardiff fans, was caused during the Coca-Cola Championship clash which the hosts won 3-2.
Toilets and seats were trashed, pipework was ripped from the walls and doors were broken in the away fans area, lumbering Swansea with a massive repair bill.
A joint statement by Swansea City and Liberty Stadium managers read: "It is totally unacceptable behaviour and we are extremely disappointed.
"The toilets are now unusable and we are assessing the cost of repairs. It will run into thousands of pounds and Cardiff City are aware of the damage.
"We will be talking to South Wales Police on what measures are being taken to investigate and what improved procedures we can put in place to prevent this sort of unacceptable damage happening in the future."
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