The gardai in Roscrea are investigating what is believed to have been a serious public order incident in the town over the bank holiday weekend.
The incident occurred in the town at approximately 1.30 on Monday morning.
Four men were arrested in relation to the disturbance and later released. Files on the incident have been sent to DPP.
According to eyewitness reports a number of weapons, including what are believed to be samurai swords, were seized during the incident, which may be linked to a local feud.