Kenya’s parliament has been recalled for an emergency session on Thursday to debate ending membership of the International Criminal Court (ICC).
A resolution supporting Kenya’s withdrawal is likely to be passed, making it the first country to do so, a BBC reporter says.
Deputy President William Ruto is due to appear at The Hague next week on charges of crimes against humanity.
The ICC said the case would continue, even if Kenya pulled out.
President Uhuru Kenyatta is due to appear at The Hague in November on charges similar to those faced by Mr Ruto.