Reports say South Africa’s elite police unit has raided the home of the controversial Gupta family as the investigation into so-called state capture continues.
Report also say three arrests have been made, including one Gupta brother.
Police say two other people are expected to hand themselves in.
The Gupta family has been accused of using their friendship with President Jacob Zuma to wield enormous political influence for their business interests.
They all deny the allegations.
The raid on the Gupta’s walled compound in Johannesburg comes as Mr Zuma faces increased pressure to resign, in part because of links to the Guptas.
He is expected to respond later today to a formal request from the African National Congress to step down.
Police also carried out raids on other properties.
According to the statement released to South African media, the raids were carried out in connection with the Vrede farm investigation.
That particular investigation relates to the Estina dairy farm near Vrede, in the Free State, a project which was originally meant to help poor black farmers but from which the Gupta family are alleged to have pocketed millions of dollars.
A tranche of leaked emails revealed last year that some of the money ended up paying for the family’s lavish wedding at Sun City, South Africa’s upmarket holiday resort.
In January, the Hawks raided the offices of the Free State Premier, Ace Magashule, looking for documents linked to the project. Mr Magashule was elected secretary-general of the ruling African National Congress (ANC) in December.
Who are the Gupta family?
The embattled Gupta family own a range of business interests in South Africa, including computing, mining, air travel, energy, technology and media.
The three brothers, Atul, Rajesh and Ajay, moved to the country in 1993 from India, just as white-minority rule was ending.
They are known friends of President Zuma – and his son, daughter and one of the president’s wives worked for the family’s firms.
The brothers have been accused of wielding enormous political influence in South Africa, with critics alleging that they have tried to “capture the state” to advance their own business interests.
What is the scandal between the family and the president?
Former Deputy Finance Minister Mcebisi Jonas made a public allegation in 2016 that he was offered 600m Rand ($50m; £36m) by the Gupta family to be the next finance minister – as long as he did their bidding.
It was followed by a damning report by a South African government ombudsman that accused the Guptas and President Zuma of colluding to win government contracts.
The public backlash worsened in 2017 when more than 100,000 emails were leaked which appeared to show the extent the family had exerted their influence.
It suggested a complex web of government contracts, as well as alleged kickbacks and money laundering.
It prompted marches and public protests against the family and President Zuma, dubbed the “Zuptas”.