A count of nearly over 95 percent for the parliamentary election also showed that Erdogan's AKP - along with its Nationalist Movement Party (MHP) allies - were well ahead and set for an overall majority.
Turkey's strongman leader Recep Tayyip Erdogan has secured another term as the country's president after winning a majority of votes in Sunday's presidential election, according to the state news Andalou Agency.
Speaking early Monday, Supreme Election Council head Sadi Guven said 97.7 percent of votes had been counted and declared Erdogan the victor, according to the Associated Press.
Turkish state news agency Anadolu, the only media distributing election results, reported that the Mr Erdogan easily claimed 52.7 per cent of the vote with more than 96 per cent of the ballots counted.
"The unofficial results of the elections have become clear".
"We have received the message that has been given to us in the ballot boxes", he said.
"Turkey has given a lesson in democracy to the entire world", he added, pointing to a turnout of 88 percent.
Erdogan was on course to defeat his nearest rival Muharrem Ince with more than half the vote without needing a second round, initial results showed.
The HDP easily broke through the 10 percent minimum vote threshold to pick up 67 seats, sparking wild celebrations in its Kurdish-majority stronghold of Diyarbakir.
President Hussain also expressed the hope that Turkey would continue on the path of progress and prosperity under the leadership of president Erdogan.
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The 64-year-old president, the most popular leader in recent decades, told jubilant, flag-waving supporters there would be no retreat from his drive to transform Turkey, a North Atlantic Treaty Organisation member and a candidate to join the European Union.
However, Putin and Erdogan have forged an increasingly close alliance in recent months.
Turkish President Tayyip Erdogan addresses his supporters gathered in front of AKP headquarters in Ankara, Turkey June 25, 2018.
Under the new presidential system, the prime minister's position no longer exists and executive powers are given to the president, who rules with limited checks and balances. An unexpectedly strong showing by the AK Party's alliance partner, the nationalist MHP, could translate into the stable parliamentary majority that Erdogan seeks to govern freely.
Erdogan counters that view, saying "Turkey is staging a democratic revolution". They have said election law changes and fraud allegations in the 2017 referendum raise fears about the fairness of Sunday's elections.
He added that he believes Mr Erdogan "has everything in his hands", including the power to end a state of emergency, release detainees and "get on another track with Europe".
Mr Erdogan said there had been no serious voting violations.
He was always expected to win and take the helm as the inaugural leader of the country's new presidential system, but it had been expected to take at least two rounds of voting. There are several problems to face: the decline of the Turkish lira, a massive 12 per cent rate of inflation and the perception that Erdogan is curtailing the central bank's independence. Erdogan says his tough measures are needed to safeguard national security.
He brought forward the elections from November 2019, but he reckoned without Ince, a former physics teacher and veteran CHP lawmaker, whose feisty performance at campaign rallies has galvanized Turkey's long-demoralised and divided opposition. He promised to lift the state of emergency shortly after the elections, to build his controversial Istanbul Canal, to open public parks throughout the country, and give every neighbourhood its own state-run cafe where tea and cake would be free.
Luxembourg's foreign minister, Jean Asselborn, said Monday it was now up to Erdogan to decide whether Turkey's relations with the European Union will improve.