Iraqi forces still faced pockets of resistance from Islamic State in Mosul's Old City on Friday, four days after the prime minister declared victory.
Iraqi forces clashed with Islamic State fighters holding out in Mosul's Old City on Wednesday, more than 36 hours after Prime Minister Haider al-Abadi declared victory over the militants.
Amnesty International said on Tuesday tactics used by Iraqi forces and their US-led coalition allies in the battle for Mosul violated international humanitarian law and might amount to war crimes.
The Syrian Observatory for Human Rights told Reuters on Tuesday that it had "confirmed information" that Islamic State leader Abu Bakr al-Baghdadi has been killed.
UN rights chief Zeid Ra'ad Al Hussein called on Tuesday for accountability and dialogue to heal the trauma of Mosul after Iraqi troops retook the country's second city from the Islamic State group.
Iraqi Prime Minister Haider al-Abadi was poised to declare victory over Islamic State in Mosul on Monday as only a few dozen militants put up resistance in the city where their leader declared a caliphate three years ago.
Iraqi Prime Minister Haider al-Abadi arrived in Mosul on Sunday and congratulated the armed forces for their "victory" over Islamic State after eight months of urban warfare, bringing an end to three years of jihadist rule in the city.
A group of jihadists tried to escape across the Tigris River from west Mosul where they hold a dwindling pocket of territory, but were killed by Iraqi forces, a senior commander said on Saturday.
Iraqi security forces expect to take full control of Mosul in the next hours as only a few meters are left under the control of Islamic State, Iraqi state TV said on Saturday.
Two Iraqi television journalists were killed by the Islamic State group while two others were trapped Friday in the same village south of Mosul but were later rescued by security forces.
Iraqi forces on Thursday battled the last remaining Islamic State group fighters in Mosul's Old City, where the UN said up to 20,000 civilians are trapped and in "extreme danger".