Supporters of Greek Prime Minister Kyriakos Mitsotakis' New Democracy party blare air horns at the party's main electoral kiosk in Athens as exit polls show the party to be on course to win Sunday's election. His New Democracy party is projected to have obtained 36 to 40 percent of the votes -- well ahead of leftist challenger Alexis Tsipras' Syriza party, which is expected to have secured 25 to 29 percent of the ballot - but could be forced to call a second round of votes as it failed to garner enough support to rule alone. IMAGES