Wildfires raging across northern and central Portugal have claimed at least seven lives, including four firefighters, and injured over 50 people. More than 5,000 firefighters are battling approximately 100 blazes, with significant outbreaks in the Aveiro district. The fires have led to the closure of major roads and train lines, and thousands of hectares of forest and scrubland have been destroyed. The Portuguese government has extended a national fire alert until Thursday, and the European Union has dispatched additional aircraft to assist local efforts. Arrests related to the fires have been made, and Portuguese leaders have expressed condolences and called for national solidarity. The current crisis comes amid extreme weather conditions, with temperatures exceeding 30°C and low humidity exacerbating the situation.