Center-right economist Pedro Pablo Kuczynski had a slight lead over Keiko Fujimori, the daughter of an imprisoned former president, as early results came in from Peru's presidential election on Sunday.

The 77-year-old Kuczynski had 50.59 percent support while Fujimori had 49.41 percent with about 52 percent of votes counted.

Earlier, polling firm Ipsos said its quick count of a sample of votes gave Kuczynski, known in Peru as PPK, about 50.5 percent and Fujimori 49.5 percent, a technical tie.