The Setanta Cup football match between Derry City and Linfield was marred by trouble outside the Brandywell last night.
Eyewitnesses said that a small number of Linfield fans had smashed windows at private houses near the Derry ground. There were also reports that at least one bus carrying Linfield supporters had windows smashed by local youths.
A director of Derry City football club is also said to have been attacked during the disturbances.
Derry City won the match 3-1.