Iraq launches west Mosul offensive as torture videos emerge
Start of major assault against Isis is overshadowed by images of men in forces uniforms carrying out beatings and killings
Iraqi government forces appear to be making swift progress after launching an offensive to capture the western part of the city of Mosul from Islamic State.
Hundreds of military vehicles, backed by air power, were filmed travelling across the desert towards the jihadis’ positions in the city early on Sunday. Plumes of smoke were seen rising into the sky as US-led coalition jets struck at least nine militant positions in south-west Mosul.