Firefighters in a number of counties have been tackling gorse fires with strong winds and dry conditions making the task more difficult.
Offaly County Council's senior fire officer has said that high winds are hampering efforts to get a number of bog fires under control in the county.
Units of the fire service are dealing with blazes in Ferbane and Ballinagar, as well as in Moate in Co Westmeath.
Bord na Móna says it has over 400 workers trying to get the fires under control.
Units of Sligo fire brigade are continuing to fight bog and forest fires over a large area in the west of the county.
The blaze began yesterday in the Dromore West/Culleens area and fire fighters worked through the night to try to contain it.
Chief Fire Officer Paul Coyle says he believes they now have the fire under control.
He said they will spend the next couple of hours working on the hotspots and then a further couple of hours monitoring the situation.
Units of Donegal fire brigade are dealing with another serious forest fire at Bonnyglen, Loughfad.
Acting Donegal Chief Fire Officer Bobby McMenamin said a number of houses are in danger but units from Glenties, Dungloe, Donegal Town, Killybegs and Glencolmcille are fighting the blaze assisted by three Coillte helicopters.
The Ballyshannon brigade is on standby to help if needed.
32 army personnel, the Falcarragh fire brigade and two defence forces helicopters are still attending the gorse fire at Muckish.
Earlier, Mr McMenamin said there are a number of smaller fires in the county that are being brought under control.
He is still warning people to be very careful and not light any fires as the weather is still very dry and windy.
The Defence Forces says troops are on standby elsewhere around the country to assist local authorities.
A spokesman for Leitrim County Council said one house was destroyed in a fire in the Dromahair area.
All fires have been put out and brigades are back at base.
Meanwhile, the National Trust in Northern Ireland estimates that thousands of acres on the Mourne Mountains have been affected by gorse fires in recent days.