Iraqi troops face stiff resistance from ISIS in eastern Mosul

A senior military commander says Iraqi troops are facing stiff resistance from ISIS militants as they push deeper into eastern Mosul.

Maj. Gen. Sami al-Aridi of the Iraqi special forces says his troops moved early Saturday morning into the Muharabeen and Ulama neighborhoods after fully liberating the adjacent Tahrir neighborhood Friday.

Al-Aridi said ISIS militants are fighting back with snipers, rocket-propelled grenades and mortar rounds. Thick black columns of smoke were seen billowing from the two areas.

The offensive to retake ISIS-held Mosul, which was launched on Oct. 17, is the biggest military operation in Iraq since American troops left in 2011. If successful, the retaking of Mosul would be the strongest blow dealt to ISIS' self-styled caliphate stretching into Syria.