Kenya’s High Court has sentenced a senior policeman to death for the murder of a detainee – one of two cases resulting in rare officer convictions.

In a separate case, five senior police officers were found responsible for the death of a six-month-old baby hit over the head by riot police.

Kenya’s police have previously faced accusations of impunity over killings.

Nahashon Mutua received a death sentence for fatally beating detainee Martin Koome with a metal bar in 2013.

Mutua was the officer in charge at a police station in the capital, Nairobi, when Koome was brought in following a domestic fight.

The officer had tried to frame an inmate for the murder but he was convicted in December and sentenced to death on Thursday.