A state of emergency has been declred in Santorini, a volcanic island and popular tourist destination in Greece, as an 'earthquake swarm' that began earlier this month continues. Since 31 January, more than 800 tremors with a magnitude of three and above have been recorded.

Mitsotakis's remarks come as many people in Santorini spent Sunday night outdoors, amid fears of potential damages to buildings during the quakes. Some focal points of the tremors have been recorded at a depth of just 2km (1.2miles) below the surface.

Crescent-shaped Santorini is a premier tourism destination with daily arrivals via commercial flights, ferries, and cruise ships. The island draws more than three million visitors annually to its whitewashed villages, built along dramatic cliffs formed by a massive volcanic eruption more than 3,500 years ago.