Two brothers from the wealthy Gupta family have been arrested in the United Arab Emirates, the South African and Emirati authorities have announced.
Atul and Rajesh Gupta are accused in South Africa of profiting from their close links with former president Jacob Zuma and exerting unfair influence.
Extradition talks are taking place between the two countries.
The brothers fled South Africa after a judicial commission began probing their involvement in corruption in 2018.
They are accused of paying financial bribes in order to win lucrative state contracts and influence powerful government appointments.
They deny any wrongdoing.
A statement from Dubai Police said the two men were being held “in connection with money laundering and criminal charges in South Africa”.
The force said it acted after receiving an Interpol “red notice” – a request to law enforcement organisations to provisionally arrest a wanted person pending extradition.
The Gupta family moved from India to South Africa in 1993. They also face accusations of money laundering in India, where tax officials raided properties belonging to them in 2018 in multiple cities, including their company office in capital Delhi.
Many of the most serious corruption allegations levelled against the Indian-born brothers focus on their relationship with Jacob Zuma, who was president of South Africa from 2009 until he was forced to step down amid a storm of corruption allegations nine years later.
The Gupta family is accused of using their close links with Mr Zuma to wield enormous political power across all levels of South African government – winning business contracts, influencing high-profile government appointments and misappropriating state funds.
Mr Zuma, along with the Guptas, denies the allegations.
After the brothers fled the country, South Africa negotiated an extradition treaty with the UAE in 2021.