II. Specific provisions
B. Judicial assistance; procedural provisions
Article 16
Postponement of the execution of requests for assistance from the International Criminal Court
(1) The execution of a request for judicial assistance from the International Criminal Court may be postponed :
(b) for a time period agreed upon with the International Criminal Court if the immediate execution of the request would interfere with ongoing investigations or proceedings in a case other than the one the request relates to.
Postponement - ongoing investigation or prosecution
EDIT.