The Arizona Supreme Court declined Sunday to extend the deadline for voters to fix problems with mail-in ballots, a day after voter rights groups cited reports of delays in vote counting and in notification of voters with problem signatures.

The Arizona Supreme Court declined to extend the state’s deadline for voters to fix problems with their mail ballots after finding no evidence of disenfranchisement. The American Civil Liberties Union’s (ACLU) Arizona arm and the Campaign Legal Center raised concerns that thousands of mail ballots won’t be processed until after Sunday’s 5 p.

Arizonans whose signatures on early ballots have been questioned won’t get more time to fix the problem and ensure their votes are counted.

The ACLU of Arizona is filing a lawsuit to extend the deadline for curing ballots. According to the filing obtained by Votebeat, it asks the court to extend the deadline for voters to respond to problems with their mail-in ballot signatures.

The groups’ petition noted that as of Friday evening more than 250,000 mail-in ballots had not yet been verified by signature.