Federal prosecutors said Alabama’s efforts to strike more than 3,200 people from voting rolls was done too close to November’s election.

The U.S. Justice Department filed a lawsuit Friday against Alabama and its top election official, accusing the state of illegally purging people from voter rolls too close to the November election. Federal officials said the purge violates the “quiet period provision” of the National Voter Registration Act that prohibits the systemic removal of names from voter rolls 90 days before a federal election.