Ugandan police have announced the arrest of 20 individuals suspected of collaborating with Islamist militants who were involved in an attack on a school last Friday.

Among those detained are the head teacher and the school's director.

The attack took place at Lhubiriha Secondary School in Mpondwe, located in western Uganda, resulting in the tragic death of 42 people, mostly students.

The victims were predominantly burnt to death in their dormitory.

The Ugandan army continues its pursuit of the Allied Democratic Forces (ADF) militants, who are believed to have crossed the border back into the eastern Democratic Republic of Congo, where they maintain their base.