On Friday, Iraqi army launched an offensive against remaining terrorists in the ancient part of the city.
"Iraqi forces early this morning breach into old #Mosul, the final #ISIS-held district in the city. We are proud to stand with them," McGurk posted on his official Twitter page.
The Iraqi operation to recapture Mosul, the key stronghold of the Daesh in Iraq, began in October 2016 and resulted in the liberation of Mosul’s eastern part this January. Fighting continues in the city's west, with Iraqi forces trying to liberate the Old City.