Six Nigerian nationals will be extradited to the United States on Friday, South African police said.

The men were arrested in Cape Town in 2021.

They are accused of cheating American women out of more than $6 million through online romance scams.

The men will be handed over to FBI officials and flown to the U.S. to face wire fraud and money laundering charges.

Police say they belong to a criminal network called Black Axe.

Interpol describes the group as part of criminal organizations responsible for a large share of the world's cyber-enabled financial fraud.

South African police say the men targeted more than 100 women in the U.S.

The alleged victims included pensioners and businesspeople, who were reportedly drawn in through sophisticated online relationships.

Police spokesperson Katlego Mogale said the six would be moved from a Cape Town correctional facility to the city's airport.

There they would be handed to FBI and U.S. Secret Service officials.

Interpol said last month that a recent operation against West African organized crime groups led to 58 arrests and the identification of 263 suspects.

In South Africa, authorities raided seven locations in Johannesburg linked to a syndicate running romance and investment scams.

Police arrested 39 people, seized $2.67 million and froze more than 250 bank accounts, Interpol said.