Polls indicate Park Geun-hye of the ruling Saenuri Party and Moon Jae-in of the main opposition Democratic United Party are in a virtual dead heat heading into Wednesday's election, Yonhap News Agency reported Saturday.
On Friday, Park campaigned in Jinju in South Gyeongsang province in a bid to consolidate the conservative vote, while Moon rallied supporters in Geojae, his hometown.
Speaking at Busan, Park urged voters to prevent "false propaganda and lies" from determining the nation's next leader. She has been accused of cheating during a televised presidential debate and one of her campaign workers was accused of engaging in illegal election activities.
Moon commented on the accusations during his rally in Geojae, saying, "This is a shocking and serious case of manipulating public opinion. Investigative authorities should properly reveal the truth."