A wildfire erupted Saturday in the North-western Peloponnese region of Achaia, according to fire officials.
The blaze has been burning a forested area in Zeria village where nearby villages of Ano Zeria, Kamares and Lampiri, including Zeria, have been evacuated.
Authorities said five people have been taken to the hospital with breathing problems while 20 houses have been burned.
About 290 firefighters, along with 75 vehicles and teams on foot are battling the blaze.
The European Emergency telephone number 112 has been activated for the affected area.
Residents in the coastal community of Loggos at Aegialia were also removed because the fire is spreading to coastal communities.
Twenty guests at a hotel in Loggos have also been evacuated by the Coast Guard, while 15 people have been transferred from a coastal area in Kamara to the port in Aegion by the Coast Guard, according to officials.
Meanwhile, traffic on the main national road connecting Patra-Corinth has been closed.
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Authorities said several fires have broken out in parts of the country.
Earlier this week, a fire in Stamata and Dionyos of the northern suburbs of the Attica region damaged several houses and burned cars, while acres of thick pine forests turned into ash.
The Achaia region was also affected by another fire on Wednesday, causing the evacuation of several villages and it burned huge parts of the forest in the area.
Summer has always been a fire season for Greece.
It suffered one of the worse fires in Greece’s history in July 2018 in the Mati resort in the Attica region with 102 people killed, including several children.
It ravaged more than 5.600 hectares, burning houses and cars.