At least two killed, 16 injured in Governor's house in southeastern Turkey city
According to media reports, the blast rocked the governor's office.
Turkish EU affairs minister Omer Celik described the explosion on Twitter as a "vile attack".
In a series of tweets Celik said: "Damned terror continues to target our people. We will fight with this terror to the end in the name of humanity."
Daily Star quoted Governor Mahmut Demirtas as saying that it was a car bomb explosion.
He said: "It is suspected that a female suspect carried out the attack."
TV channels broadcast video footage of a vehicle in flames in the car park outside the office and thick black smoke rising into the sky.
Several ambulances and police teams were seen rushing towards the area.
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