A top official at a global bank has been charged by the Department of Justice for fraud, as part of a larger government probe into bank manipulations of foreign exchange markets.

Mark Johnson, a British citizen who is the head of foreign-exchange cash trading for the London-based HSBC, was arrested Tuesday at JFK International Airport in New York City and will appear in a federal court Wednesday on charges of defrauding a client in a foreign exchange deal, according to the Justice Department.