The trio is being investigated by Financial Intelligence Authority (FIA), a government body mandated with monitoring and preventing money laundering.

An official from FIA says they are closely monitoring the socialites to establish the real source of money after their shocking spending pattern.

The government body hasn't "found any unusual inflow of astronomical amounts of cash that would warrant questioning of the holders," according to privately owned Chimp Reports.

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The three socialites are known for spending huge sums of money on lavish parties, cars and unbelievable financial contributions and donations.

In April, Pemba flew in Congolese Lingala maestro to Kampala to grace his wife's lavish birthday party; last year, police launched an investigation over money laundering.

Bryan White has been spending a lot of money in acquiring expensive luxury vehicles and spending oodles of cash in donations and sponsorships.

Mbuga is currently detained in Dubai over allegations of helping his wife to fleece a company UGX23bn.