Turkey election: 'Highly likely' election will go to run-off with Erdogan narrowly in the lead

Parties of both current President Recep Tayyip Erdogan and main challenger Kemal Kilicdaroglu have claimed to have an early lead, but if neither finishes with more than 50% of the vote they will face off in another round.

Turkey's election appears to be heading for a run-off, as it looks likely the two main candidates will fail to clear the 50% threshold needed to avoid a second round.

With 99.4% of the domestic votes and 84% of the overseas votes counted,Recep Tayyip Erdogan had 49.4% of the votes and Kemal Kilicdaroglu had 45%, Ahmet Yener, the head of the Supreme Electoral Board, told reporters.