GARDAI are probing a second fire that broke out at a controversial landfill in the space of 24 hours.
Firefighters were called to the Kerdiffstown facility near Naas, Co Kildare, again yesterday morning -- just hours after they dampened a massive blaze there on Thursday evening.
Detectives have sifted through the dump looking for clues as to what started the fires.
Black and toxic smoke could be seen "for miles" from the landfill after Thursday evening's blaze.
Firemen got that blaze under control in less than two hours, by which point it had ripped through a shed that was over 2,000sqm in size.
However, the fire service's work was not done and they were back at the landfill again yesterday morning to put out yet another blaze. Old cables were reportedly burned at the site.
The fire service said a full-scale garda investigation was under way. However, they added that there was "no power" in the facility so the blaze may have been suspicious.
The landfill had been run by a company called Neiphin Trading, operating under the name A1 Waste, when the Environmental Protection Agency (EPA) brought a High Court case against it for unregulated dumping practices.
In May the court granted an order for the dump's closure. The EPA had received more than 200 complaints from nearby residents over the smell coming from the dump.
In recent weeks residents living close to the site also expressed fears it may explode because of a build-up of gas.