Syrian Democratic Forces have seized the town of Al-Hamra, five kilometres east of the city.
The US-backed Kurdish-led fighters are closing in on the Raqqa stronghold of the Islamic State of Iraq and the Levant (ISIL).
Qatar says it has been targeted by a hostile media campaign after fake news was published online and repeated on other outlets despite vigorous official denials. A four-hour cyberattack hit official media on Tuesday.
Mosul: thousands flee the city as Iraqi forces try to secure west
Iraqi forces are trying to secure all western districts of Mosul.
People continue to leave the area as fighting rages in residential neighbourhoods.
More than 200,000 people are still living under ISIL control in the city.
After concluding talks with Israeli and Palestinian officials during his visit to the Middle East, US President Donald Trump has reaffirmed his promise to help mediate a peace deal between the two sides.