Turkey's ruling Justice and Development Party (AKP) claims victory in crucial parliamentary elections on 1 November 2015
With almost all votes counted, the AKP takes nearly 49.4% of the vote, with the opposition CHP trailing on 25.4%
Pro-Kurdish HDP and nationalist MHP cross the 10% threshold needed to enter parliament
It's the second time in five months Turks have taken to the polls
Security is a key issue amid a broken ceasefire with Kurdish rebels and several deadly bombings
BBC's Mark Lowen
Shortly before the election the BBC's Mark Lowen investigated the violence that has plagued south-eastern Turkey in recent weeks, and met some victims in Diyarbakir. Most people living in the south-east of the country are Kurdish.
He explains why security became such a key issue in this election.
Image source, ReutersExtra security deployed in Diyarbakir for election
Wall Street Journal reporter Ayla Albayrak tweets, external:
"Kurdish youth angered by poll results erect fire barricade, shout slogans in Diyarbakir center, calling for revenge."
"Clash erupted bw police, Kurdish youth in central Diyarbakir after results show surprise upward shift in AKP votes."
Reports are coming in of violence erupting in the mainly Kurdish south-eastern city of Diyarbakir. Reuters quotes an eyewitness who says Turkish security forces fired tear gas at protesters, while AFP simply says there has been an "incident" between police and Kurdish activists.
Mustafa Akyol, Turkish journalist
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The elections come amid heightened tensions in Turkey. A ceasefire between the Turkish army and militants from the Kurdistan Workers' Party (PKK) collapsed in the wake of a suicide bombing in July blamed on so-called Islamic State (IS) militants.
Then just last month, Turkey suffered its deadliest attack in modern history, when 102 people were killed in twin suicide bomb blasts targeting a peace rally in Ankara.
The rally was attended by mainly left-wing demonstrators, including many Kurdish HDP supporters. The government said the bombers were linked to IS.
Ceylan Yeginsu, New York Times
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Emre Peker of The Wall Street Journal
Turkey's main opposition Republican People's Party (CHP) says a coalition government appears unlikely, given the partial election results, a senior official tells Reuters. Latest figures currently put the party on 23.3% of the votes.
The CHP is centre-left and opposes Mr Erdogan's plan to boost presidential powers.
Getting a majority is crucial for President Erdogan's plan to change the constitution in order to create an executive presidency. It would mean concentrating more powers in the presidency and weakening parliament.
Parliament has 550 seats, so the AKP needs 276 to get a majority, the BBC's Rachel Thompson explains.
In June, the AKP got 258. Forecasts suggest they could get 327.
With 330 seats, they can call a referendum on changing the constitution and increasing presidential powers. With 376 seats, the government can change the constitution without calling a referendum.
Image source, APMark Lowen reports from Turkey as the votes are counted.
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A senior official from Turkey's pro-Kurdish HDP party has described the results as disappointing, but says his party is expected to cross the 10% threshold to enter parliament, Reuters reports.
The party made a surprise breakthrough in June by crossing the threshold and securing seats in parliament for the first time, causing Mr Erdogan's Islamist-rooted AK Party to fall short of seats.
Mark Lowen, BBC Turkey correspondent
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journalist for Today's Zaman
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Initial results would give the AKP enough seats to form a single-party government in the 550-seat parliament after losing its majority in June and failing to form a coalition government.
Image source, AFPWelcome to our live coverage of the Turkish parliamentary election results and reaction. This is a crucial election for Turkey, after Kurdish unrest and violence that has spilled over from Syria.
With almost half of the votes counted Turkish media say that the governing AK Party of President Recep Tayyip Erdogan has a slim majority.