More than 18,000 fans attended the sell-out derby
Fifteen arrests were made at a derby football match between Swansea City and Cardiff City, say South Wales Police.
Two people were arrested during the game at the Liberty Stadium, Swansea which the home team won 3-2.
Another 13 arrests were made outside the stadium after the game. The arrests were for public order offences.
However, police praised the majority of supporters for their behaviour before, during and after the game which was attended by more than 18,000 fans.
Divisional Commander for Swansea, Ch Supt Mark Mathias, who was in charge of policing the match, said: "The overwhelming majority of fans behaved extremely well.
"There was some disorder in the Siloh Road area after the game but as a result of efficient policing this was limited and confined.
"I appreciate that big games such as this have an impact on the local community of Landore and I would like to thank residents for their understanding and support for which we are extremely grateful."
Extra officers and police vehicles were on duty as the fixture was marred by crowd trouble last year.
Both clubs had urged their supporters to behave following ugly scenes when they met last year.
Police made 27 arrests following trouble after the Carling Cup match between the two sides in Swansea while in the league game at Ninian Park referee Mike Dean suffered a cut to the forehead after a coin was thrown by a home fan.