STORY: Peru's presidential race is too close to call, setting up a long vote count after Sunday's runoff.

Early returns show Keiko Fujimori, daughter of hardline former President Alberto Fujimori, locked in a tight contest with leftist lawmaker Roberto Sanchez.

With about half the ballots counted, Fujimori leads, but that could shift as votes come in from rural areas, where Sanchez has strong support.

A quick tally by Ipsos points to a thin margin in his favor.

Peru's election authority said a full count is expected by mid-July.

Speaking after the Ipsos quick tally was announced, Fujimori urged patience, saying "there will be long days ahead" before the final result.

The race has been shaped by two issues: rising crime and Peru's socioeconomic divide.

Fujimori, in her fourth runoff, is drawing on her father's hardline legacy.

Sanchez, meanwhile, is campaigning on reform and closing the economic gap between those living in Lima and rural areas.