Gardaí have seized a firearm and a number of vehicles, as they investigate last weekend's violence at the scene of an eviction in Roscommon.
Two men were arrested this morning in connection with the incident in Falsk near Strokestown.
8 security officers, who were guarding the empty property, were injured and several vehicles were torched by a group of masked attackers.
The detained men are aged in their 50s and 60s, and are being held under the Offences against the State Act, at Castlerea Garda Station.
Gardaí say a lorry and a teleporter were among the vehicles seized during searches of houses and sheds at four locations.