Greek Prime Minister Kyriakos Mitsotakis has urged people on the island of Santorini to "stay calm" after an increase in seismic activity. His remarks come as schools were told to close on Monday and authorities advised against large gatherings in enclosed spaces across the island,

Residents and tourists on the Greek island of Santorini have been put on high alert after an increase in seismic activity.

A spike in seismic activity on Santorini, one of Greece's top tourist hotspots, has raised concerns about an imminent major earthquake. Anxious residents and tourists are scrambling to leave the island amid limited ferry and flight availability,