Tens of provinces across Turkey were left without electricity on Tuesday after a damage to the power grid that passes through the biggest city Istanbul links the country's European and Asian territories.



Turkish PM Ahmet Davutoglu says no version is currently being dismissed to explain the incident, including a terror attack, according to H?rriyet Daily News.



Alongside 44 provinces, the capital Ankara is also affected, with only a small part of both Istanbul and Ankara's populations being provided with electricity as of Tuesday afternoon.



Energy Minister Taner Yildiz said he could not immediately answer whether or not there was a cyber attack.



His ministry earlier reported that the cut most likely occurred in the Aegean region.

The blackout is reported to have taken place at 10:36 local time (08:36 GMT) on Tuesday and is said to be the biggest in 15 years, though outages are not uncommon.