Warsaw, Poland ? A pro-market lawmaker and Warsaw’s socially conservative mayor appeared headed for a runoff in Poland’s presidential election on Sunday after neither candidate appeared to have gained the 50 percent of the vote needed, according to preliminary results and a key exit poll.

With 91.5 percent of the ballots counted, 36 percent of voters had backed Donald Tusk, a pro-business candidate committed to stimulating entrepreneurship with low taxes and deregulation; 33 percent voted for Warsaw Mayor Lech Kaczynski, a former child actor hoping to preserve a strong safety net, according to the state electoral commission. Turnout was nearly 50 percent.

If the results hold, the two former activists with the anti-communist Solidarity movement would be forced into a runoff on Oct. 23.