Exit polls in Poland suggest that nationalist opposition candidate Andrzej Duda has won the most votes in the first round of Poland's presidential election but did not get the 50 percent needed to win the presidency outright in the first round and will face incumbent Bronislaw Komorowski in a May 24 runoff.
The surprise exit polls from the May 10 election show Duda winning about 34.5 percent of the vote compared to Komorowski's 33.1 percent.
Official results were not immediately available.
Opinion polls before the vote had shown Komorowski with a comfortable lead.
Komorowski, 62, has campaigned on a platform of strong national security -- a message that has played well with voters concerned that Poland could become Russia's next target for military intervention after the Kremlin's intervention in eastern Ukraine and its illegal annexation of Crimea.
In Poland, the prime minister has the most power, but the president wields clout as the head of the armed forces and also has a say in foreign policy and the power to veto legislation.