Two years after Kenyan athletics champion Agnes Tirop was stabbed to death, the prime suspect was released on bail and promptly disappeared -- evidence, say activists, of how Kenya fails victims of gender violence.

The Silencing Women Project, an NGO-run initiative, recorded 170 femicides last year in just 10 of the country's 47 counties, "the deadliest year on record for Kenyan women".

Femicide typically refers to murders by a partner, spouse or family member in which the victim's gender plays a key role.

The murder in October 2021 of Tirop, a two-time bronze medallist in the 10,000 metres world championships, has been one of the most high-profile such crimes in recent years.