Washington (CNN) Fifty-eight immigrant children under the age of 5 have been reunited with their parents after being separated at the border, the Trump administration said in a Thursday evening filing.

That was one more than the government had announced earlier in the day. The new tally comes as part of a class action lawsuit the American Civil Liberties Union filed against the administration.

Though the deadline for reuniting children under 5 has passed, in two weeks the government will need to reunite thousands more children aged 5 to 17 to meet the judge's next deadline.

Despite working extensively together, government and ACLU lawyers sharply disagreed on how to proceed in the case, according to the joint filing.

The ACLU asked for the government to provide a daily report of reunified families to the court starting next week and for additional details to prevent the government from missing future deadlines.

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