Tehran - BORNA - No immediate casualties were reported.
The magnitude 6.1 quake was centered in the town of Sindirgi in Balikesir province, according to the Disaster and Emergency Management agency, AFAD.
It struck at 22:48 local time (1948 GMT) at a depth of 5.99 kilometers (3.72 miles.)
The quake, which was followed by several aftershocks, was felt in Istanbul, and the nearby provinces of Bursa, Manisa and Izmir.
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