A yearslong legal battle over an alleged fraud scheme involving real estate deals for Amazon’s data centers may be one step closer to a conclusion.

The Department of Justice asked a judge this month to vacate guilty pleas from two men accused by Amazon of participating in a multimillion-dollar kickback scheme. The two are among at least six people Amazon accused in a 2020 civil lawsuit of participating in the elaborate scheme, starting as early as 2017.

Amazon says the scheme left it duped into signing overpriced real estate deals while former employees and others working with a real estate developer lined their own pockets with excess funds.

Last March, two men who had worked with the real estate developer pleaded guilty to charges related to those allegations. Earlier this month, though, the DOJ asked that the court throw out those pleas.