An explosion has killed two pupils and left two others critically injured in Omel sub county, Gulu district. Bosco Abonga, the Deputy Speaker of Omel sub county identifies the deceased as Ronald Rubangakene,12 and Morris Opiyo,13. The injured are Derrick Okello,13 and Brian Rubangakene,12. They are all pupils of Bul Kur Primary School in Bul…