Two people have been arrested following a large row on Main Street, Portlaoise in the early hours of Sunday morning.
The fracas, involving up to 20 people, took place outside the courthouse at around 1.20am.
A number of Garda units were called to the scene, including a detective unit and officers from Abbeyleix.
Gardai say the matter is being investigated. One person has been charged and gardai say more charges are to follow for the numerous persons involved.