Thousands of residents are fleeing the Greek island of Santorini amid a wave of seismic activity. Some 6,000 people have left the island by ferry since Sunday, according to local media, with emergency flights scheduled to leave on Tuesday.

Multiple earthquakes are rattling Santorini, a volcanic island in Greece, prompting authorities to dispatch rescuers with tents, a sniffer dog and drones, and to shut schools on four islands. Residents have been warned to avoid indoor gatherings,