Jamaica ? Jamaica’s main opposition won a close election victory Monday, according to preliminary results, but the prime minister said the results were still too close to call and the ruling party was not ready to concede defeat.

The opposition Jamaica Labor Party won 31 of the 60 seats in the House of Representatives, enough to oust Jamaica’s first woman prime minister and end the ruling party’s nearly 20-year hold on power in the Caribbean country.

Director of Elections Danville Walker said it would take about two days to complete the final count.

Prime Minister Portia Simpson Miller said there were a number of races that were so close that they could switch in a recount and that she was concerned that election rules may have been violated.

Simpson Miller alleged that some candidates campaigned beyond the cut off point mandated by election rules that some members of her People’s National Party were inappropriately prevented from voting. She warned of possible legal challenges.

“We are conceding no victory to the Jamaica Labor Party,” she said.