Four men in their 20s and a 15-year-old boy were arrested in the Ballinrobe area of Co Mayo gardai, investigating a series of burglaries in the district.
A high-power car and a commercial van were seized along with property allegedly linked to recent home burglaries.
Four men are due to appear before Castlebar District Court today. The teen was released without charge.
A home broke out in the Claremorris neighborhood of Co May last Friday.
The arrests were made as part of Operation Thor – a planned military intelligence operation across Co May – aimed at preventing and detecting burglary.
All five were brought under section 4 of the Criminal Justice Act and were detained at Castlebar Station and Westport Guards for questioning.
Gardaí appeals for information, especially to anyone who saw a black van on Friday or any suspicious activity in the southern Maya area, to contact the incident room at Castlebar Garda Station on 094 9038200 or the Garda Confidential Line on 1800 666 111.