SOUTH OF MOSUL, Iraq (AP) — Iraqi forces pushed deeper into western Mosul Saturday amid stiff resistance from entrenched Islamic State fighters, a commander on the scene said. Special forces Lt. Gen. Abdul-Wahab al-Saadi said that his troops are "moving very slowly" and that IS fighters are responding with car bombs, snipers and dozens of armed drones. Al-Saadi said he expects the pace to increase after Iraqi forces retake territory and infrastructure on Mosul's southwestern edge — which will allow them to shorten supply lines and link up with forces in the city's east.