(Reuters) - Michael Grimm, a Republican U.S. congressman from New York, was arrested Monday morning by FBI agents following a federal criminal investigation into his campaign finances, a person familiar with the matter said.
Grimm, a former FBI agent, surrendered to federal authorities shortly before 7 a.m. EDT, the person, who declined to be named, told Reuters.
Grimm is expected to be arraigned later Monday morning in a federal court in Brooklyn.
The charges against Grimm involve a Manhattan health-food restaurant he owned, the Washington Post reported on Monday.
Robert Nardoza, a representative for the U.S. Attorney's office in Brooklyn, declined comment. FBI spokesman Christos Sinos also had no comment.
On Friday, Grimm's attorney William McGinley condemned the expected charges as a "politically driven vendetta" against the congressman.
McGinley declined comment on Monday.
Diana Durand, a fundraiser for Grimm, was arrested in January on charges that she illegally funneled more than $10,000 to his campaign.
A grand jury indicted Durand on Friday on charges that she made campaign contributions that exceeded federal caps in 2010.
House Speaker John Boehner had no immediate public comment on the charges against Grimm, the third scandal to hit House Republicans in recent months.
In April, married Congressman Van McAllister of Louisiana was caught on camera passionately kissing a married staffer in his office, prompting calls to resign, which he has rejected. In January Trey Radel of Florida resigned after pleading guilty to buying cocaine.
Grimm also generated headlines in January when he threatened to throw a television reporter off a balcony after an interview in the U.S. Capitol building.
Grimm, a former Marine, was elected to the House of Representatives in 2010 as one of a wave of conservatives backed by the Tea Party movement, which advocates small government and minimal taxes. Federal investigators have been looking into his political fundraising for at least two years.