Landowners have been warned about an increased risk of fire in the coming days due to hot weather.
It is urging forestry owners, farmers, rural dwellers and other countryside users to be extremely vigilant regarding fire activity.
People are encouraged to carry out a risk assessment of their property, particularly if there is a history of land burning in the vicinity.
They are also asked to report suspicious activity to gardaí and report all fires immediately to the emergency services.
The department says there is an increased danger associated with human activities in high risk areas, such as those associated with turf cutting or adjacent to urban centres.
The department's warning is due to remain in place until 30 May.
It is an offence to burn vegetation on land between 1 March and 31 August.