The home of House Speaker Gordon Fox was raided by federal officials investigating the Rhode Island politician.

The United States attorney's office, FBI, IRS and state police are all involved in the probe into the Fox's financial dealings, the Associated Press reported on Friday.

Federal investigators first started looking into Fox's case in January, when the politician settled with Rhode Island's ethics commission after omitting information on legal work he'd done with an economic development agency in Providence, AP reported.

Fox reportedly failed to inform officials he'd made at least $40,000 in unreported dealings with the agency. He also admitted he'd broken a law that requires political leaders to submit yearly reports when they rake in more than $250 in funds from a government agency, according to AP. He agreed to pay a $1,500 civil fine at that time.

Authorities investigating Fox's Statehouse office rolled in with a large evidence bag and cardboard boxes Friday morning, AP reported. Spokesperson for Fox Larry Berrman said the investigators requested everyone working in the office vacate the room, but he wasn't sure exactly why.

A handful of police officers stood watch outside the Democratic House speaker's closed door.

Fox reportedly went back to his house, located in Providence's East Side, on Friday afternoon. FBI Agents had already arrived at the residence, and were moving boxes out of his house. He didn't stop for a comment.

Spokesperson for the United States attorney's office Jim Martin could not offer a comment either, after reporters asked for more details on whether the House speaker was under investigation.