A federal judge on Tuesday postponed the sentencing of former national security advisor to Donald Trump, Michael Flynn, allowing him more time to cooperate with ongoing investigations.

Judge Emmet Sullivan of the US District Court for the District of Columbia called Flynn’s crimes “very serious” and asked him numerous pointed questions.

Flynn had pleaded guilty last year to making false statements to the FBI. Earlier this month Special Counsel Robert Mueller recommended that Flynn receive little to no jail time based on his cooperation with the investigation.

However, after facing harsh criticism from the judge, Flynn met privately with his lawyers and then returned to request more time before sentencing.

Both sides now have until March 13 to file a status report with the court, and a new sentencing date has not yet been set.

Earlier this week Mueller released a memo detailing Flynn’s January 2017 FBI interview.