The case against Uhuru Kenyatta has angered many African leaders
The International Criminal Court (ICC) has summoned Kenyan President Uhuru Kenyatta to appear before the tribunal on 8 October.
Judges want to question him over claims that his government has withheld documents requested by prosecutors preparing his crimes against humanity trial.
The trial has already been delayed several times.
Mr Kenyatta denies organising ethnic massacres after elections in 2007.
Some 1,200 people were killed and 600,000 driven from their homes.
Two weeks ago, prosecutors asked for the case against him to be adjourned indefinitely, saying they did not have enough evidence because of obstruction by the Kenyan government.
President Kenyatta has repeatedly argued he needs to remain in Kenya to fight militants from the al-Shabab group and take care of state affairs.
In a statement, the ICC said discussions with Mr Kenyatta would focus on “the status of co-operation between the prosecution and the Kenyan government”.
The political dispute soon descended into ethnic killings