Wildfires continued to blaze across Europe on Thursday with progress being reported on some fronts and deaths on others. In Greece, firefighters made progress in their fight with at least four major fires, one of which had threatened the country's third-largest city, Patras. A fire department spokesman said "scattered" pockets of fires were "still active" in the western port city of 200,000 but that the situation was largely under control. Three people have been arrested in connection with the fire, which authorities said may have been deliberately set. On Wednesday, authorities in Patras ordered the evacuation of a children's hospital and a retirement home to protect residents from the approaching flames. Citizens have joined efforts to beat back the fires and more than a dozen firefighters have been hospitalized or received emergency medical treatment. Despite reduced wind speeds on Thursday evening, officials warned that the fire risk remained "extremely high across much of the country." "Under such conditions, even a single spark is enough to trigger an uncontrollable fire," said Ioannis Kefalogiannis, the civil protection minister. "This combination of weather and geographical factors leaves us no room for complacency." Two men, one with his T-shirt wrapped around his face, the other carrying a dog, seen in a thick haze as dark smoke approaches behind them Two men, one with his T-shirt wrapped around his face, the other carrying a dog, seen in a thick haze as dark smoke approaches behind them Flames and smoke have forced tens of thousands of people to leave everything behind as they flee to safetyImage: Aris Messinis/AFP/Getty Images Fire knows no borders — Albania and Turkey report deaths As is the case across all of heat-soaked Europe, Greece's firefighting resources — 600 ground crews and nearly 30 water-carrying aircraft — are stretched thin. Beyond fighting four major fires at home, Athens has assisted neighboring Albania, joining an international effort to combat dozens of wildfires there. In central Albania, authorities say dozens of houses were destroyed and four villages had to be evacuated when a sea of flames approached a former army ammunition depot. That came as explosions from buried World War II munitions were reported near Albania's border with Greece. Fire near the capital, Tirana, killed an 80-year-old man. Prime Minister Edi Rama promised that police would work "day and night" to apprehend arsonists suspected by the government of causing some of the fires intentionally. In Turkey, where fires have raged since June, a forestry worker was killed in an accident involving a fire truck said authorities. Four individuals were injured. Fires in Turkey killed 18 people in July, 10 of them volunteer rescuers and forestry workers. Across the Mediterranean Sea, authorities in Morocco said water-dropping aircraft and more than 450 personnel successfully contained a blaze near Bab Taza, in the north of the country. A second wildfire near Tetouan was also brought under control