RIOT police were drafted into Windsor Park on Monday night after Dublin football fans tore up seats and sang sectarian songs.
For a second week in a row, the clash between Linfield and Shamrock Rovers has ended in trouble.
Last week, Linfield fans sang sectarian songs and hoisted the Union flag at Rovers’ Tallagh stadium. Two fans spent the night in the cells before being released.
On Monday night, it was the turn of Rovers’ fans to disgrace their club.
It is understood some Rovers fans broke through barriers in the top deck of the North Stand and made their way towards Linfield fans.
Police brought the situation under control however both sets of supporters were heard goading each other throughout the game.
It is understood a number of seats were ripped up and thrown onto the field from the North Stand end.
A flare was also thrown causing the game to be stopped briefly.
SDLP south Belfast MLA Conall McDevitt condemned the behaviour of Rovers’ fans at Windsor Park.
“I’m disgusted that some Shamrock Rovers fans came to Belfast tonight to engage in sectarian chanting and violence. It has no place in sport,” said the MLA who sits on the Policing Board.
Linfield lost 3-1 and 7-2 on aggregate.
A Linfield fan club said on Twitter: “Linfield fans singing billy boys, rovers singing IRA songs, but it’s rovers fans ripping seats & causing mayhem. We tell it how it is.”
Following the match, fans said there was a “face off” between police and supporters in Tates Avenue, south Belfast.