The trial of two boys charged with the deaths of 67 of their classmates in a dormitory blaze began today in Kenya.
Felix Mambo Ngumbao, 16, and Davies Otieno Onyango, 17, face life in prison if convicted of arson.
About 150 students were sleeping in a cramped, poorly-maintained dormitory when the fire broke out in March last year at Kyanguli boarding school in Machakos, 30 miles southeast of Nairobi.
Prosecutors said the teenagers had a range of grievances against the school authorities, including the annulment of final exam results over cheating accusations, disputes over the mishandling of school funds and the poor food and accommodation offered to students.