Demirtas's People's Democratic Party (HDP) commands only about 10-12 percent support, but he is still likely to draw significant backing in a first round presidential vote against President Tayyip Erdogan and other candidates. The main opposition Republican People's Party (CHP), the Good Party (İP), the Felicity Party (SP) and the Democrat Party (DP) agreed early Wednesday to form the alliance.
All positions in the 600-seat Turkish Parliament will be contested in next month's vote.
Spokesperson Bulent Tezcan did not confirm during Tuesday's announcement if there was a consensus within the CHP on a candidate, saying only "we are at an important point".
Separately, Meral Aksener, the head of the IYI Party, applied to the Supreme Board of Elections (YSK) on Wednesday to seek the presidency. Before that, he served as prime minister from 2003 to 2014.
Elections 2018: the North West heads to the polls
European Union citizens are able to vote, unlike in general elections, and some campaigners have been pressing Brexit as an issue. But a survey last week for Queen Mary University gave Corbyn's party an overwhelming 51%-29% lead over the Tories in London .
He wrote on Twitter that the party executive was "completely incapable and incompetent" and said Kilicdaroglu's unwillingness to run himself had made him a "political fugitive".
Turkey has been in a prolonged state of emergency for nearly two years.
The first to submit his candidacy was the maverick leader of the small leftist nationalist Patriotic Party, Dogu Perincek.
Turkey will also hold parliamentary election on June 24. After the elections the country will transition from the parliamentary system to the presidential one.
Iranian Lawmaker Warns Of Response To Israeli 'Aggression' In Syria
Mr Guterres called on the USA leader not to withdraw from the deal, saying that it risked a real possibility of war if the agreement was not maintained.
Meanwhile, the AK Party broke a record in Turkey's political history with the number of applications for candidacy, which reached 7,329; 1,332 applicants are women, 498 applicants are disabled and 468 are young people aged 18-25.
Following the People's Alliance, opposition parties also have agreed to establish an alliance.
Its leader is former interior minister, former member of the Nationalist Movement party Meral Aksener who is expected to be Erdogan's main opponent in the presidential election.
Sonam Kapoor and Anand Ahuja wedding, know more about the couple
And I have enough time after that for the promotion of my film. "So yes, I think I will handle everything pretty well". The couple is all set to tie the knot with the festivities starting from May 7th with the mehendi ceremony .