article_snippet: Prime Minister Ahmet Davutoglu said all possible causes were under investigation, including terrorism.
article_snippet: The semiofficial Anadolu Agency quoted Energy Minister Taner Yildiz as saying the cause of The outage was unknown.
article_snippet: Energy Minister Taner Yildiz, speaking during a visit to Slovakia, said Prime Minister Ahmet Davutoglu could neither confirm nor deny that a cyberattack had triggered the blackout, The semiofficial Anadolu Agency reported.
article_snippet: The Turkish Electricity Transmission Co. blamed The outage on a problem with transmission lines, The semiofficial Anadolu Agency reported.
article_snippet: The Turkish Electricity Transmission Co. said an investigation was in progress, as were efforts to restore power, The semiofficial Anadolu Agency said.
highlights_snippet: Turkish Prime Minister: All possible causes of outage under investigation, including terrorism .