A US court has sentenced a former American banker at Swiss banking giant UBS to three years and four months in prison for helping wealthy US clients evade taxes.
Bradley Birkenfeld pleaded guilty to conspiring to defraud the US on June 19, 2008.
The whistleblower's confession led to the US government's probe of a multimillion-dollar tax evasion case against UBS, Switzerland's biggest bank.
Birkenfeld, of Weymouth, Massachusetts, was sentenced by Judge William Zloch in Fort Lauderdale, Florida.
Birkenfeld's defense attorney, David Meier, called the prison sentence 'disappointing' but said his client would continue to work with US investigators.
'Mr Birkenfeld intends to continue to fully cooperate with the government in its ongoing and expanding investigation,' Meier told reporters.
