Multiple security forces are attacking "what remains of the unliberated areas" on the west bank of the River Tigris, the Joint Operations Command said in a statement.
"Army forces attacked Al-Shifaa neighbourhood and the Republican Hospital, federal police forces Al-Zinjili neighbourhood, and Counter-Terrorism forces attacked Al-Saha al-Oula neighbourhood," it said.
All three neighbourhoods are located north of the Old City, a warren of closely spaced buildings and narrow streets that has posed significant challenges to Iraqi forces seeking to oust IS.
IS overran large areas north and west of Baghdad in 2014, but Iraqi forces backed by US-led air strikes have since regained much of the territory they lost to the jihadists.
Iraqi forces launched a major operation to retake Mosul in October 2016, fighting their way to the city and retaking its eastern side before setting their sights on its smaller but more densely populated west.
Disclaimer: No Business Standard Journalist was involved in creation of this content
