Collated from news sources

A powerful earthquake has struck off Turkey’s Aegean coast, north of the Greek island of Samos.

Magnitude 6.6 earthquake shakes Turkey’s western coast

Turkey’s Disaster and Emergency Management Presidency said Friday’s earthquake, which struck at 14:50 local time, was centred in the Aegean Sea at a depth of 16.5 kilometres (10.3 miles) and registered at a 6.6 magnitude.

Turkish officials said at least 20 building collapsed in Izmir with people trapped under the debris in at least five sites

There were no immediate reports of casualties on Friday but video footage on social media showed buildings in the Turkish city of İzmir had been seriously damaged.

Updates reported 4 people trapped under debris, rescued in the Bayraklı district of Izmir, and a 13-story building collapsed in the Bornova district with people trapped under rubble.

Videos also showed flooded streets in the city, apparently caused by a small tsunami following the earthquake.

Meanwhile, Greek media said residents of Samos and other islands fled their homes, while some rockfalls were reported.

Residents of Samos, which has a population of about 45,000 people, have been urged to stay away from coastal areas as high tidal wave warnings were also put in place.

Both countries reported aftershocks.

This is a developing story and we will bring you further updates.