A Polish security operation found the bodies of the suspect's family in a forest, according to officials. The attack, described as a terror incident, resulted in multiple casualties. A British national was among those injured. The suspect, also British, was identified as one of the injured. The attack occurred in a remote area of the country. Authorities are investigating the motive behind the attack. The suspect's family members were discovered in a wooded region. The incident has raised concerns about security in the region. The British victim is being treated in a hospital. The suspect remains in custody. The attack is under review by national security agencies. The families of the victims are being supported by local authorities. The event marks a significant security incident in Poland. The investigation is ongoing.