Kenyan police are being accused of torturing and raping refugees from the Somali community, allegations put forward by Human Rights Watch.
The US-based group released a report saying the abuses took place between November 2012 and January this year.
The alleged crackdown began after a series of bomb blasts in Nairobi blamed on al-Shabab, the armed group attempting to overthrow the government in Somalia.
Al Jazeera's Peter Greste reports from Nairobi.
Source: Al Jazeera