Taking the west side could prove much tougher; the jihadists are expected to put up a fierce fight as they are cornered in a shrinking area.
Alleged militant was arrested in raids following Istanbul Reina nighclub massacre.
The jihadist group is said to have beefed up security to prevent further escapes.
UN has warned 750,000 are in direct danger as the Iraqi army prepares its assault on Mosul.
The joint operation involved 9 Russian attack aircraft and 8 Turkish warplanes.
Muslim convert Kevin Guiavarch claims he rejected the terror group after his arrest.
Security sources in Mosul confirmed Abu Abdel Rahman, a Saudi leader, was in charge of executing women.
US-led coalition forces have begun bombing Isis positions in Rashidiyah, the last major district in north Mosul.
The Rubkan camp, in northeast Jordan, is home to at least 75,000 refugees.
Images show the affected building covered in rubble and riddled with bullets.
Interior minister Wolfgang Sobotka said the suspect, 18, was an Austrian citizen of a migrant background.
One monument was also destroyed by the militant group in the 2,000-year-old cultural site.
Iraqi soldiers in eastern Mosul have celebrated victory by pausing for selfies with Daesh corpses.
The YPG and the Kurdish-led Syrian Democratic Forces are advancing towards Raqqa, an Isis stronghold in Syria.
The US-led coalition also continued air strikes in Iraq and Syria against the Islamic State group.
The resumption of executions in Palmyra is a conspicuous propaganda effort by Isis.
The air strike targeted Abu Ibrahim al-Tunsi, a Tunisian jihadist in Idlib governorate.
Iraqi forces recaptured the eastern half of the nation's second city and are now eyeing the west.
Iraqi commanders announced the victory three months after the assault on Mosul began.
As Iraqi forces push Isis out of Mosul, IBTimesUK looks at the impact on southern Iraq
The Counter-Terrorism Service has taken control of the eastern bank of the Tigris river, according to military sources.
Bashar al-Assad's strategy has enabled Islamic State to regain ground.