Two people have died in a large wildfire burning through forestland near a seaside resort in southern Greece, authorities said.

The fire service said about 350 firefighters, assisted by eight water-dropping aircraft, managed to bring the blaze under control near Xylokastro in the Peloponnese region.

Half a dozen villages were ordered evacuated overnight as a precaution after the fire broke out on Sunday.

A wildfire burns a forest near the village of Kallithea
The fire is now largely under control (AP)

The flames were fanned on by very strong winds blowing through forests left tinder-dry by a warm spring and hot summer.

Authorities said the two dead were believed to be local residents declared missing late on Sunday. No-one else is believed to be missing.

There were no immediate reports of burned homes in the affected area, some 93 miles south-west of Athens.

A resident reacts as a wildfire approaches the village of Ano Loutro
No-one else is thought to be missing or injured (AP)

Greece, like other southern European countries, is plagued by destructive wildfires every summer.

Over the past few months, authorities have had to cope with more than 4,500 wildfires.