Ex-Wall Street banker Pedro Pablo Kuczynski's camp claimed victory Tuesday in Peru's photo-finish presidential election, but polarizing rival Keiko Fujimori said it's not over till the last vote is counted.

With more than 97 percent of the ballots in from Sunday's runoff, the Oxford-trained economist known as "PPK" had the edge in the race to lead one of Latin America's fastest-growing economies: 50.14 percent of the vote to 49.86 percent for Fujimori, the daughter of jailed ex-president Alberto Fujimori.


Read more