"Today, Potami is the third democratic power in the country. This is a victory of society. Without money, without protectors, without agreements with vested interests and unions, we achieved the unachievable: to enter Parliament with 16 lawmakers," Theodorakis told journalists, commenting on the electoral results of his party.

Greek leftwing leader Alexis Tsipras struck a deal with a right-wing party to form a government to confront international lenders and reverse years of painful austerity following a crushing election victory by his Syriza party.