The arrests form part of the GNR's nationwide efforts to prevent and investigate rural fires, with officers carrying out patrols, inspections and criminal investigations across the country throughout the fire season.

Although deliberate arson often dominates headlines, authorities say many fires are also linked to negligence. Everyday activities such as using machinery that produces sparks, burning garden waste or lighting fires during periods of extreme fire danger can quickly lead to devastating consequences when vegetation is dry, and temperatures remain high.

Besides investigating suspected fire crimes, GNR officers are carrying out regular patrols in rural areas and speaking directly with residents about the precautions that need to be taken during the summer. The force is also checking whether landowners and businesses are complying with fire safety rules.

Portugal going through fires

Portugal has already faced several major wildfires this summer, with firefighters responding to blazes in different parts of the country as prolonged hot and dry weather has increased the risk of fire spread. High temperatures, low humidity and strong winds can allow even a small ignition source to develop into a fast-moving wildfire in a matter of minutes.

Authorities are urging the population to remain vigilant and follow all fire prevention rules, particularly when visiting rural areas or carrying out outdoor work. During periods of maximum fire risk, activities such as burning vegetation, using certain types of machinery or lighting barbecues outside authorised areas may be prohibited.

For those living in or visiting regions such as the Algarve, Alentejo and central Portugal, checking the daily fire risk level before planning outdoor activities is becoming increasingly important during the summer. Fire danger can change from one day to the next, and restrictions are often tightened when weather conditions deteriorate.

The GNR has stressed that preventing wildfires is a shared responsibility. Reporting suspicious behaviour, respecting seasonal restrictions and taking extra care outdoors can all help reduce the number of fires and protect lives, homes and Portugal's natural landscapes.