Kenya's president is appearing before the International Criminal Court to appeal for the crimes against humanity case against him to be dropped for lack of evidence.

Uhuru Kenyatta, who this week temporarily handed the presidency to his deputy to avoid becoming the first sitting head of state to appear at the court, says prosecutors have insufficient evidence to merit putting him on trial for allegedly instigating violence after Kenya's 2007 presidential elections that left more than 1,000 people dead.

Prosecutors concede that they don't have enough evidence, but argue that Kenyan authorities are blocking their investigation.

Kenyatta's trial has twice been postponed and no starting date has been set.

Judges are not expected to rule Wednesday on whether to drop the case against Kenyatta, who insists he is innocent.