(CNN) Special counsel Robert Mueller's work does not appear to be done yet.

Mueller's team and defense attorneys for former Trump campaign official Rick Gates updated the judge presiding over his case Tuesday, and yet again, Mueller is not ready to put his sentencing in motion.

Gates "continues to cooperate with respect to several ongoing investigations, and accordingly the parties do not believe it is appropriate to commence the sentencing process at this time," attorneys from both Gates' legal team and special counsel's office said in a one-page statement for the judge.

The lawyers involved asked for their next update to come in two months.

The delay again in Gates' case suggests that Mueller's team and other investigators in the Justice Department are not done yet with the investigations into the Trump campaign and inauguration, for which Gates is seen as a key witness.