Police in Uganda have denied allegations that presidential candidate Bobi Wine was abducted on Friday evening as vote counting continues in the East African nation amid an internet blackout.

Wine's party said a helicopter landed in the grounds of his house in the capital, Kampala, and forcibly took him to an unknown location.

Initially Wine's son, Solomon Kampala, said both his parents had been seized, but later claimed his father "escaped" and only his mother was being held, leading to confusion over the whereabouts of the opposition leader.

The latest electoral figures from Thursday's vote give Museveni 72% of the vote, with Wine on 24%, based on returns from 94% of polling stations.

Speaking at a press conference on Saturday morning, police spokesman Kituuma Rusoke said the National Unity Platform (NUP) party leader was still in his home in Kampala and that it was Wine's family members who were spreading "untrue" and "unfounded" claims.