Washington ? Federal investigators are accusing former top officials of the Washington Teachers’ Union of using more than $2 million of members’ dues to buy themselves luxury items, including a $20,000 fur coat and a $57,000 Tiffany silver service.

The FBI, Internal Revenue Service, Labor Department and District of Columbia inspector general are conducting the investigation. It began after the parent American Federation of Teachers began auditing the local’s books in response to complaints about members being overcharged dues.

Edward McElroy, the AFT’s secretary-treasurer, said he was “outraged to learn of the alleged abuses of union funds for personal gain.”

The probe resulted in raids Friday of the former officials’ homes, as well as several businesses where the merchandise was believed to be stored.

An FBI affidavit filed in U.S. District Court in Washington named the local’s former president, Barbara A. Bullock; Gwendolyn M. Hemphill, Bullock’s assistant; and former treasurer James O. Baxter II.

A copy of the affidavit was obtained Saturday by The Associated Press.

The affidavit charges that Bullock spent more than $1 million in union funds to buy nearly $500,000 in custom-made clothing; $11,000 worth of shoes; a $6,800 ice bucket from Neiman-Marcus, the high-end department store; and two sheets and two pillow cases that cost $1,195.

The document alleges that Bullock and Hemphill also conspired with relatives to spend and launder union funds for their personal use.

Telephone calls to the FBI’s Washington field office were not returned Saturday.

Hemphill, the former co-chair of Washington, D.C., Mayor Anthony Williams’ re-election effort, left the campaign in September after elections officials uncovered thousands of forged signatures on the mayor’s nominating petitions. Her lawyer, Fred Cooke, said Hemphill was cooperating with the union investigation.

Both Bullock and Hemphill have resigned their posts and Baxter was suspended, the union said.