London (CNN Business) Three former Credit Suisse bankers have been charged by the United States over their role in a fraudulent loan scheme that prosecutors allege included at least $200 million in bribes and kickbacks.

Andrew Pearse, Surjan Singh and Detelina Subeva have been indicted by prosecutors in New York for helping to arrange over $2 billion in loans that were guaranteed by the government of Mozambique, according to court documents unsealed on Thursday.

The loans were supposed to be used on maritime projects in Mozambique. But prosecutors allege that at least $200 million of the proceeds were used as bribes and kickbacks to the bankers, government officials and others.

Pearse and Singh, who were managing directors at Credit Suisse ( CS ), were arrested on Thursday in London, along with Subeva, a former vice president at the Swiss bank, according to prosecutors.

Manuel Chang, the former finance minister of Mozambique, has also been charged in connection with the scheme. US prosecutors said he was arrested on December 29 in South Africa.

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