Authorities are looking into allegations that the Sterling Park Golf, Swim and Tennis Club may be the site of an illegal gambling operation.

The investigation into the private club was opened in June when an agent of the Virginia Department of Alcoholic Beverage Control met with an unidentified informant who is a club member and an officer on its board of directors, according to an affidavit for a search warrant filed Friday in Loudoun County Circuit Court.

The man told the agent he believed that there may be a "conspiracy among several members of the club in regards to the embezzlement of club funds and also gambling," the affidavit states.

A manager at the club, at 333 S. Sterling Blvd., declined to comment and referred calls to the club's attorney, William Pickett. Pickett, who has offices in Fairfax and Manassas, did not return calls for comment.

According to the affidavit, the informant became interested in the club's finances because of his position on the board and because he felt he was "stonewalled" when he tried to gather information and institute procedures on "cash control."

The man did a "quick financial projection" dealing with the recent collection of membership dues at the club, the affidavit states.

Despite a $60 increase in dues, the man said, the amount recorded in February through April of this year were thousands of dollars less than in the same period the previous year.

The informant told officers that he had talked to other members about gambling in the club and was told that club computers were used to track the bets, according to the affidavit.

The man also said he had witnessed gambling in the club's lounge, including a "big Super Bowl football pool," and had seen "large sums of cash being carried in a large folder," the affidavit says.

Authorities also are investigating whether alcohol was sold illegally at the Sterling club, which is licensed to sell only beer.

After talking to the board member, investigators met with another person who made similar allegations of gambling, alcohol violations and possible misappropriation of funds, the affidavit states.

On Friday, authorities searched the club, seizing such documents as bills and membership records and receipts, according to court records. Officers also took a computer, several rolls of raffle tickets and a folder labeled "Football Pool" that was in a cabinet behind the bar.

Last year, Mark W. Eckert, 43, manager of the Ashburn Pub, was convicted of illegally running a college basketball betting pool at the bar.

Investigators said thousands of dollars exchanged hands at the Ashburn Village Boulevard bar, where patrons were betting on the National Collegiate Athletic Association basketball tournament.

Eckert was found guilty of illegal possession of a gaming device.

A judge suspended a $500 fine and allowed local authorities to keep $5,440 seized during a raid.