MIAMI AP – A former UBS executive was one of two European bankers charged by federal prosecutors on Tuesday for helping a billionaire real estate developer hide assets overseas and evade millions of dollars in U.S. income taxes.

The former UBS executive, 43-year-old Bradley Birkenfeld, and 43-year-old Mario Staggl of Liechtenstein are charged with a single count of conspiring to defraud the United States by creating fictitious trusts, bogus corporations and other false entities to hide some $200 million in assets. They each face up to five years in prison if convicted.