Eyewitness News was the first on the scene today, as FBI investigators raided a building in downtown Providence. Investigators are keeping mum on why they were there at 226 South Main Street for most of the day, but it almost certainly involves the International Laborers Union.

The FBI, the State Police, and the Providence Police showed up at 226 South Main Street this morning. They declined comment as they entered the building for a search that may have included all four floors of the building.

226 South Main is the location of the state's most prominent labor law firm, Coia and Lepore. It's also the office location of the Laborer's International Union of North America, and the New England Laborers Labor Management Cooperative Trust. One of the principals in the law firm later issued a statement saying the firm was not the subject of the raid.

The agent in charge of the Providence office declined to offer much detail on why they were there.

“We’re conducting an investigation. I'm not at liberty to say anymore than that today - part of a larger investigation that we're looking at and beyond that there will be a statement and information out to the media in the future."

In the future, but not today. Agents brought boxes into the building, but there was no information forthcoming on what they were looking for.