Schools on the Greek tourist island of Santorini will remain closed on Monday after dozens of small earthquakes shook the region, civil protection authorities announced.
Government officials, including Civil Protection Minister Vasilis Kikilias ordered the move after a series of tremors in the sea around Santorini and surrounding islands, the site of one of the largest volcanic eruptions in recorded history.
Dozens of small earthquakes have been recorded, the strongest so far was magnitude 4.6.
On Sunday, quakes of magnitude 4.1 and 4.5 shook the region, according to the Department of Geophysics of the University of Athens.
This was preceded by 11 other earthquakes within a few hours.