Nigeria, Feb. 25 -- Phrank Shiabu, an aide to the presidential candidate of the Peoples Democratic Party (PDP), Atiku Abubakar, has described as "utter rubbish," a viral audio clip on social media that purportedly revealed plans by Atiku, his running mate, Governor Ifeanyi Okowa of Delta State and the Director General of his campaign, Governor Aminu Tambuwal of Sokoto State, to rig the presidential election.

In a statement on Friday, Mr Shaibu who is the special assistant on public communications to Atiku said the latest audio clip in circulation was a confirmation of his warning last week that the opposition would deepen its propaganda ahead of the election.

In a widely circulated audio clip, Atiku, Messrs Okowa and Tambuwal were heard...