Four young Kenyan men who disappeared last month following a spate of abductions have been freed on Monday.

The abductions which generally target government critics and are believed to be the work of security agents, began in June last year during the nationwide anti-tax protests, but increased in December.

According to data by Kenya's National Commission on Human Rights, which is a government-funded body, 82 cases of enforced disappearances were recorded in the past six months, compared to just nine cases in the 18 months preceding that.

To give us an update, we are now joined by Wachira Mwangi a photojournalist working for Nation Media Group's Daily Nation newspaper in Mombasa.

He has covered protests that demand for their release of those kidnapped.