Hanna Gronkiewicz-Waltz from Poland's opposition Civic Platform defeated the ruling Law and Justice candidate Kazimierz Marcinkiewicz, the ex-prime minister, in Sunday's election for Warsaw mayor, according to exit polls.
In the second round of local elections, the two candidates respectively won 52.8 percent and 47.2 percent of vote, Polish state television TVP and the Dziennik daily reported, citing the GfK Polonia exit polls.
"I am deeply moved," Gronkiewicz-Waltz was quoted as saying. The former head of Poland's central bank told reporters that she would "not disappoint" the trust being placed on her.
Marcinkiewicz, who was also Warsaw mayor, congratulated Gronkiewicz-Waltz immediately after the exit polls were published, saying he was leaving Warsaw with her "in good condition and with a very good budget."
Poles on Sunday went to polling stations in the second round of local elections, which included a mayor runoff in Warsaw. The first round of elections was held on Nov. 12, but no candidate reached the 50 percent of the vote needed to win outright.