The Department of Agriculture, Environment and Rural Affairs (DAERA), Northern Ireland Fire & Rescue Service (NIFRS) and the Police Service of Northern Ireland (PSNI) have issued a joint call for vigilance as spring and summer bring heightened wildfire danger.

Wildfires threaten Northern Ireland's landscapes, biodiversity, property and infrastructure, and place people at risk while incurring significant public costs. Smoke and pollutants can harm respiratory and cardiovascular health, cause injuries and affect mental wellbeing, with children and vulnerable groups particularly at risk.

In light of spring weather patterns and the condition of upland vegetation, DAERA will apply a default 'Yellow' or moderate wildfire risk across areas containing dead grasses, gorse and heather. This baseline status will remain in force until the end of the wildfire season in September unless upgraded by DAERA.

Officials also reminded the public that it is an offence to burn or destroy vegetation on uncultivated land between 15 April and 31 August. Activities that could damage an Area of Special Scientific Interest (ASSI) may require consent, and landowners unsure of their obligations should consult the Northern Ireland Environment Agency (NIEA) before proceeding.

DAERA Minister Andrew Muir said: "We all saw the damage that was done across Northern Ireland last year with devastating wildfires in the Mournes, Slieve Beagh and the Sperrins. I would urge everyone to act responsibly by heeding the advice, remaining vigilant and swiftly reporting to the Police anyone they suspect of maliciously starting fires in our countryside." NIFRS Area Commander Ryan Thompson said: "Last year, we responded to a significant number of wildfires throughout the spring and summer months, which placed intense pressure on our Firefighters and our Service. As we approach this period again, we urge everyone to support their Fire & Rescue Service by staying alert to wildfire risks and acting responsibly in the countryside. With everyone playing their part, we can help prevent wildfires before they start."

PSNI Superintendent Chris Hamill said: "Deliberately setting a wildfire is a criminal offence for which you can face prosecution. Where it is found that a fire has been maliciously started, it will be fully investigated by police, and when identified, those responsible can expect to be arrested and brought before court."

Advice for countryside visitors includes: avoid using open fires; use barbecues only in designated areas and never leave them unattended; ensure barbecues are completely extinguished and cold before disposal; put out cigarettes and other smoking materials properly; never throw cigarette ends from vehicles; and park considerately to keep access clear for emergency services.

For those undertaking prescribed burning: only burn within the legally permitted period; secure all required permissions and consents; notify NIFRS before the burn and once it is completed; and ensure robust measures are in place to contain and manage the activity.

If you spot a fire: call the Fire & Rescue Service immediately; do not attempt to tackle anything beyond a small fire that could be put out with a bucket of water; leave the area quickly; and report anyone seen setting fires to the PSNI.

Landowners planning prescribed burning within the legal window must also notify, in writing, all forest owners within one mile not more than one month and not less than 14 days before the intended burn date.