Deadly wildfires which have claimed the lives of at least three people have spread across several British tourist hotspots forcing thousands of evacuations as a scorching heatwave continues to tear through Europe.

Sunseekers have been fleeing Greece's Zakynthos and Kefalonia islands 'by the minute' as raging infernos continue to rip through the Med.

A British bar worker on Zakynthos told Sky News he joined emergency services and locals to help combat a 'shocking' fire near a popular tourist resort.

Since dawn on Wednesday, 4,850 firefighters backed by the army and 33 planes were mobilised across Greece on what promised to be 'a very difficult day', fire service spokesman Vassilis Vathrakogiannis said.

In popular party-resort Laganas, officials ordered young Brit revellers to leave hotels as a 'precautionary measure' after the fires shot clouds of black smoke over the area.