Iraqi forces launched an operation on February 19 to retake the west side of Mosul — the most populous area still held by the ISIS group — and have retaken several neighborhoods.
But the pace of their advance has periodically slowed because of bad weather that has hampered air support.
The Old City, where hundreds of thousands of civilians are believed to have stayed on under ISIS rule, is a warren of narrow streets that restricts the use of large armored vehicles.
“Federal police and Rapid Response units imposed their complete control over the Al-Basha Mosque… and the Bab al-Saray market in the Old City,” federal police Lieutenant General Raed Shakir Jawdat, the commander of the federal police, said in a statement.
Iraqi forces launched the operation to recapture Mosul — the ISIS’s last major urban bastion in the country — in October, retaking its east side before setting their sites on the smaller but more densely populated west.