Four Kenyan police officers have been charged with the murder of a six-month-old baby nearly eight years ago.

Eight other officers who had originally been accused alongside the four have had the charges against them dropped by the public prosecutor, sparking criticism.

The case relates to baby Samatha Pendo, who was fatally hit in 2017 as police were deployed to quell violence linked to post-election protests in the western city of Kisumu, even as the four officers who are still accused denied multiple charges including murder as a crime against humanity.