A powerful earthquake has struck off Turkey's Aegean coast, north of the Greek island of Samos, officials said.
The 7.0 magnitude tremor, about 17km (11 miles) off the coast of western Izmir province, was felt as far away as Athens and Istanbul, the US Geological Survey (USGS) said.
There was no word on casualties but images from the Turkish city of Izmir showed buildings that had collapsed.