Two more officials with ties to the athletics ticket office at Kansas University have resigned, Kansas Athletics Inc. announced Friday.

Brandon Simmons, assistant athletics director for sales and marketing, and Jason Jeffries, assistant director of ticket operations, are no longer employed at Kansas Athletics, where federal investigators have been looking into potentially illegal sales of regular-season and tournament basketball tickets.

KU also has hired a law firm, which in turn contracted with a forensic accounting firm, to review the operations of both the ticket office and the Williams Educational Fund, which has 4,200 members and last year generated about $15 million in revenue for the department.

Kansas Athletics distributed news of the resignations to members of the fund, whose donations can give them access to tickets to Allen Fieldhouse events.

Simmons previously served as an assistant director in the ticket office, before being promoted in December to assistant athletics director for sales and marketing.

Jeffries joined the staff at the ticket office in 2003, and had been assistant director for ticket operations since February 2004.

The resignations come as others already have resigned as the investigations continue:

• Rodney Jones — an assistant athletics director for the Williams Fund, who had been on administrative leave since early March — resigned two weeks ago.

• Ben Kirtland resigned April 5 as associate athletics director for fundraising. He was Jones’ boss.