Kenyan police 'targeting' Islamic extremist suspects
20 December 2013 Last updated at 06:58 GMT
There are allegations that the Kenyan police are carrying out summary justice on people they suspect may be connected with Islamic extremism - three months after a terrorist attack on a shopping mall in the Kenyan capital, Nairobi, in which at least 67 people died.
The police units involved are trained and funded by Britain and the United States.
Gabriel Gatehouse reports from Mombasa.