Two men have been arrested in connection with the murder of Gerry Nolan.
Mr Nolan died following a fire at his caravan in Deerpark, Castlecomer, Co Kilkenny, on July 24th, 2006 .
Five men were arrested at the time, but no charges were filed.
The case was reviewed in 2014, which led to the launch of a murder investigation.
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The men, aged 27 and 30, were arrested in the Dublin area on Thursday morning.
They are being detained at Kilkenny and Thomastown Garda stations under Section 4 of the Criminal Justice Act, 1984.
Gardaí investigating the murder are appealing for witnesses or anyone who may have information on the incident to contact them at Kilkenny Garda station on 056-7775000, the Garda Confidential Line on 1800-666111 or any Garda station.