Cyril Ramaphosa, a former anti-apartheid activist turned businessman, was named South Africa's president on Thursday and immediately vowed to fight corruption in a direct reference to accusations leveled at his predecessor Jacob Zuma.
Tainted by scandal, Zuma resigned on Wednesday following intense pressure from the ruling African National Congress that he had dominated for his nine years in power, AFP reported.
"Issues to do with corruption, issues of how we can straighten out our state-owned enterprises and how we deal with 'state capture' are issues that are on our radar," Ramaphosa told lawmakers in parliament.
"State capture" refers to the alleged corruption of government institutions and state-owned businesses by Zuma's associates.
"Tomorrow we will also have an opportunity to outline some of the steps we are going to be taking," he said.
ANC lawmakers celebrated his appointment with songs, dancing and a standing ovation.
Ramaphosa, a hugely wealthy former entrepreneur, will deliver his first State of the Nation address to parliament in Cape Town on Friday evening.
After multiple corruption scandals, economic slowdown and falling popularity among voters, the ANC had threatened to oust Zuma via a no-confidence vote in parliament.
Hours before his resignation, Zuma said he had received "very unfair" treatment from the ANC, which he joined in 1959, spending decades in the party fighting white-minority rule.
He said he was angry over the way in which the decision had been carried out "as there is no evidence if I have done anything wrong."
The political turnaround saw benchmark South African stocks scoring their biggest gains since June 2016 following news that the pro-business reformist would be taking the helm.
The FTSE/JSE Africa All Share Index rose as much as 2.7%, while the rand, already the world's best-performing currency over the past three months, rose 0.4% to 11.6667 per dollar.
"Ramaphosa's arrival in the presidency will be met by a surge in investor and consumer confidence over the coming weeks in anticipation of his reform agenda," said the London-based Eurasia consultancy group.
Ramaphosa, 65, must now work to revive the economy and crack down on what he has admitted is rampant government corruption if he is to repair the party's tarnished reputation before a tricky general election next year.
He is a former trade unionist and Mandela ally who led talks to end apartheid in the early 1990s and then became a multi-millionaire businessman before returning to politics.
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