19 children and two adults die in primary school dormitory fire , pupils say . Police denies pupils ' claim that dormitory door was locked from the inside . Police investigate cause of blaze at about 60 kilometers from city .
19 schoolgirls and two adults die in primary school dormitory fire , police say . School denies pupils ' claim that dormitory door was locked from the outside . Police investigate cause of blaze at school 60 kilometers from Kampala .