A shallow magnitude 6.4 earthquake struck the Turkey-Syria border region after it was devastated earlier this month by temblors that killed tens of thousands of people.
Monday’s aftershock in Turkey’s Hatay province was at a depth of 2km (1.2 miles), the European Mediterranean Seismological Centre said.
The quake hit the town of Defne at 17:04 GMT and was strongly felt in the cities of Antakya and Adana, 200km (300 miles) to the north.
A second magnitude 5.8 centred in Samandag district of Hatay shook the region several minutes later, Turkey’s disaster management agency said.
The temblors were felt in Syria, Jordan, Palestine and Egypt.
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