ATHENS, Greece (AP) — The leaders of three political parties have arrived for a critical meeting with the Greek president, who is trying to broker a deal for a coalition government and break the deadlock of elections that have left the country in political limbo.

The heads of the conservative New Democracy, socialist PASOK and small Democratic Left parties were meeting Tuesday night with President Karolos Papoulias in the eighth day of negotiations. The May 6 elections left no party with enough parliamentary seats to form a government.

The uncertainty in the debt-ridden country has roiled markets across Europe and jeopardized Greece's continued presence in the euro. If no solution can be found, the country must hold new elections.