ISTANBUL — Turkish President Recep Tayyip Erdogan has won tightly-contested presidential polls, the election authority said on Monday.

Turkish voters had for the first time cast ballots for both president and parliament in the snap elections, with Erdogan looking for a first round knockout and an overall majority for his ruling Justice and Development Party (AKP).

Erdogan defeated his nearest rival Muharrem Ince with an "absolute majority" of more than half the vote without needing a second round, said the chief of Turkey’s election authority, Sadi Guven.

"I have been entrusted by the nation with the task and duties of the presidency," Erdogan said in a victory address at his Istanbul residence, vowing that the new presidential system would be implemented "rapidly".

"Turkey has given a lesson in democracy to the entire world," he added, pointing to an 88 per cent turnout.

’Everyone wins’

Erdogan won 52.5 per cent in the presidential poll while Ince, of the secular Republican People’s Party (CHP), was on 31.5 per cent, state-run Anadolu news agency said, based on a 99 per cent vote count.

If confirmed, the figures would show Erdogan polling on a similar rating or even stronger than his 2014 election victory where he won his first mandate after over a decade as prime minister.

Celebrations erupted outside Erdogan’s residence in Istanbul and AKP headquarters in Ankara, with crowds of flag-waving supporters, AFP correspondents said.

Erdogan flew in triumph to Ankara where he held his traditional victory speech from the balcony of AKP headquarters at 3am (midnight GMT). "The winner of this election is each and every individual among my 81 million citizens," he declared.

The usually loquacious Ince however remained silent, tweeting only that he would make a statement at 0900 GMT on Monday.

Trailing were Selahattin Demirtas of the pro-Kurdish Peoples’ Democratic Party (HDP) with over eight per cent in third and Meral Aksener of the nationalist (Iyi) Good Party with over seven per cent.

Erdogan also declared victory in the parliamentary election saying that the alliance led by the AKP and the Nationalist Movement Party (MHP) had won the majority in parliament.

A count of 99 per cent of the votes showed that Erdogan’s AKP and the MHP would win 293 and 50 seats respectively, enough for an easy majority in the 600-member chamber.

The HDP was polling 11.5 per cent, well over the 10 per cent minimum threshold needed, to win 67 seats which would make the party the second largest opposition faction in the new chamber.

Celebrations erupted in the Kurdish-majority city of Diyarbakir, with people letting off fireworks into the sky.

Its success is all the more remarkable given the HDP’s Demirtas has campaigned from a jail cell after his November 2016 arrest on charges of links to outlawed Kurdish militants.

Erdogan had faced an energetic campaign by Ince, who has rivalled the incumbent’s charisma and crowd-pulling on the campaign trail, as well as a strong opposition alliance in the legislative poll.

But the CHP expressed unease over the conduct of the count, accusing Anadolu of being over hasty in publishing results that favoured Erdogan.

Its spokesman Bulent Tezcan said Anadolu had published a count of over 90 per cent of votes while in fact short of 40 per cent had been counted.

Several world leaders supportive of Erdogan, including Azerbaijani President Ilham Aliyev and Qatari Emir Tamim bin Hamad Al-Thani, called to congratulate him on his "victory", the presidency said. — AFP