Story highlights Carroll was questioned about her work with Allied Veterans of the World

57 people were arrested for alleged racketeering in connection with the company

Carroll was the first African-American elected to Florida statewide office

Florida Lt. Gov. Jennifer Carroll has resigned, it was announced Wednesday, the day after she answered questions from investigators about her role in an allegedly corrupt veterans' charity.

The resignation came the same day 57 people connected to the charity, Allied Veterans of the World, were arrested on racketeering and money laundering charges. Leaders in the company, which operates Internet gambling parlors, are accused of donating little of its proceeds to veterans, and instead buying luxury goods for themselves.

"I want any funds from these groups to immediately be given to charity. I have zero tolerance for this kind of criminal activity, period," Gov. Rick Scott said Wednesday.

In a two-sentence resignation letter delivered to Scott, Carroll said it was an "honor to have served." She consulted for Allied Veterans, but was not among those arrested Wednesday.

"Carroll consulted for this company in 2009 and 2010 when she was serving in the Florida House of Representatives," Scott said at the press conference. "The Florida Department of Law Enforcement interviewed Lt. Gov. Carroll about her work for this company, and yesterday Lt. Gov. Carroll resigned in an effort to keep her affiliation with the company from distracting our efforts to help make sure we do the right thing for Florida families."

Scott said he wouldn't elaborate on any potential connection between Carroll and Allied Veterans of the World, but did say he appreciated "the efforts she made on behalf of the state of Florida. She was tireless. She put a lot of effort into military and getting jobs going and I am grateful for her service."