Brazilian Interim President Michel Temer has been implicated in a bribery scheme at the State oil company, Petrobras.
The allegations came from a former Petrobras Executive, Sergio Machado, who has been giving plea bargain evidence to prosecutors.
Mr Machado, who is himself accused of corruption, said Mr Temer requested the donation of around $440,000 for his PMDB Party’s candidate’s campaign in the Mayoral Elections in Sao Paulo in 2012.
He said the contribution was made by a construction company and masked as an official campaign donation.
The money originated from the kickback scheme involving contracts handed out by Petrobras, he added.