One of President Robert Mugabe's closest allies accepted US$160,000 ($200,000) paid into the accounts of his children by a company that sold fuel to Zimbabwe's regime.
Six separate payments were made to the bank accounts of three children of Gideon Gono, the Governor of the Reserve Bank, while they were studying in Australia, at the time the company concerned was helping to supply Zimbabwe with fuel.
Gono admitted that the payments had been made to his twin daughters and a son, but denied ever taking a "bribe". He said the funds had been reimbursed on his behalf.
The disclosure comes ahead of Zimbabwe's election starting tonight in which Mugabe, 89, is attempting to win another term after three decades in power and years of economic turmoil that the opposition blames on Gono, the architect of the regime's economic policies.
It provoked immediate calls for an investigation into Gono's finances. "The disclosure of these payments raises serious questions about the behaviour of Gideon Gono, who has been Mugabe's right-hand man for many years," said Kate Hoey, a Labour MP. "The Government of Zimbabwe should begin an immediate investigation ..."