The offensive to retake Mosul began October 17, led by Iraqi security forces and aided by the Kurdish Peshmerga, a Shiite-led militia, and the US -led worldwide coalition.
Iraq state TV aired live footage showing thick black smoke rising from the Old City, with the sound of gunfire rattling inside.
The Old City is a densely-populated warren of narrow alleys where fighting is often done from house to house, according to Reuters. It said leaflets have been distributed urging civilians to leave through five "safe corridors".
The UN says around 150,000 civilians are trapped in the ancient city centre along with hundreds of ISIL fighters.
"The reason we know that they're being shot at by snipers and not crossfire is because they're being shot in the back", Grande said.
Special forces are advancing on the district from the west and federal police are on the southern front, a military statement said.
IS has been preventing civilians from leaving Raqqa in an apparent attempt to use them as human shields.
He added that there is virtually no food, water, electricity and fuel in the area, and civilians are "living in increasingly worsening situation of penury and panic because they are surrounded by fighting on every side".
As for Raqqa itself, the USA -backed Syrian Democratic Forces (SDF) are on the offensive to strip IS of one of its key strongholds and self-declared capital in Syria.
Earlier this month, the global body warned of a "significant escalation" of civilian deaths in the city.
- November 23: Shiite-dominated paramilitary units known as the Hashed al-Shaabi say they have cut IS supply lines between Mosul and the jihadists' Syrian stronghold Raqa, 400 kilometres (250 miles) to the west. Mortars fired by security forces trying to dislodge the militants "rain down", while airstrikes tear down buildings in the packed neighborhood, one resident said by phone from the besieged area.
Key dates in the Iraqi offensive to recapture Mosul, the country's second biggest city, from the Islamic State group (IS) jihadists who seized it in June 2014.
Iraq launched its military offensive to retake western Mosul from the Islamic State on February 19.
In Mosul, where a US-backed offensive against IS on Saturday entered its ninth month, the militants have been squeezed into an enclave on the western bank of the Tigris River.
However, this has been treated with scepticism given he has frequently been reported killed or wounded over the last three years.
Raja Krishnamoorthi, who, introduced the revised version of the Perkins Act along with Pennsylvania Republican Rep. Companies can also set up non-registered apprenticeship programs, which many companies, such as Adobe, have done.
Along with Chile and Cameroon, Group B includes Germany and Australia that will play their match in Sochi on Monday. Alexis Sanchez has sprained his ankle in training and may miss Chile's Confederations Cup opener against Cameroon.
Scalise, the No. 3 House Republican , arrived at the hospital via helicopter in shock, with intense internal bleeding, Sava said. He suffered massive blood loss and was at "imminent risk of death" upon arriving at the hospital Wednesday.
ABC News reported that Mr Rosenstein has told colleagues privately that he may have to step aside from the investigation. Last month, Rosenstein wrote a memo to the president raising concerns over Comey's performance.
Still, the snowballing investigation has deeply angered Trump, who denies he has any nefarious ties to Russian Federation . The official demanded anonymity because the official was not authorized to be named discussing the deliberations.
The FBI said that the shooter's weapons found at the scene - a 9mm handgun and 7.62mm caliber rifle - had been legally purchased. Scalise, 51, and four others were wounded when an IL man opened fire Wednesday morning on the team practice in Alexandria .
Fortunately for McIlroy, this tweet from Elkington contained a glaring grammatical error, leaving another opening for McIlroy. Rory McIlroy has hit back at criticism of his US Open performance after he was accused of being "bored" of playing golf.
He had missed a relatively-simple eagle putt at the par-four 15 today from just 2m after a spectacular 3-wood from the tee. Koepka is looking for his second win on tour, and first major, after the 2015 Waste Management Phoenix Open.
The Milwaukee County Sheriff reportedly rescinded his acceptance of the position, which he was slated to begin in June. Clarke is "reviewing options inside and outside of government", the statement said. "This appointment is a disgrace".
This comes as the federal investigation and congressional inquiries into Russian interference in the election moves along. But Rosenstein, too, may ultimately have to hand off oversight of the probe given his own role in Comey's firing.
Rosenstein has been overseeing the Russian Federation probe since shortly after Attorney General Jeff Sessions recused himself . He said he will fire Mueller only if there was a "good cause" for it, "it wouldn't matter to me what anybody said".
62 dead in central Portugal wildfires; many killed in cars
The crowd fell silent and Francis bowed his head to recall the "many victims" of the blaze. "The EU is fully ready to help". Prime Minister Narendra Modi on Sunday expressed sadness over the loss of lives in a forest fire in Portugal.
Afghan soldier attacks foreign soldiers, wounding 4
The Pentagon is set to announce it is sending another 4,000 United States troops to the country to counter the insurgents. According to the Taliban, this operation was carried out by an element infiltrated into the ranks of the Afghan forces.
Burling, Kiwis beat Oracle third time in America's Cup
The Kiwis' 50-foot catamaran rose onto its hydrofoils and sped off across the turquoise waters of the Great Sound . We tidied up a lot of those little errors we made yesterday around the course and I think that really showed.
GOP, Dem governors call for changes in House health bill
Collins has been a leading advocate for a deliberate health care reform process focused on giving more people access to care. The only things that can prevent the passage of Trumpcare are the votes of a handful of vulnerable Republican Senators.
Predators on brink as Rinne struggles again in Pittsburgh
They also had appeared to have figured out Nashville goaltender Pekka Rinne , as they scored eight goals on 36 shots. The Predators in past years have given out a construction worker's hard hat to recognize the best player in a game.
Scalise on the mend, now in 'serious' condition
Sava said he told Scalise's family that 'I am not declaring victory until he's playing ball in his back yard with his family'. The congressman underwent another surgery on Saturday, and the hospital said he was more responsive and speaking with family.
Dennis Rodman gifts Trump book to North Korean minister
North Korean authorities said the coma was the result of botulism. "This is pretty much what happened in this case", Lankov said. After a disastrous trip in 2014, Rodman's fifth journey into North Korea seemed to be something of a redemption tour.