Iraq retakes Mosul airport amid cautious advances against IS

SOUTH OF MOSUL, Iraq -- Closely supported by the U.S.-led international coalition, Iraqi forces secured a series of cautious advances Thursday, pushing into a sprawling military base outside Mosul and onto the grounds of the city's airport, where they took control of the runway.

The three-pronged attack began just after sunrise, with three convoys of Iraqi forces snaking north across Nineveh's hilly desert on Mosul's southern approach.

Iraq's special forces joined federal police and rapid response units in the push -- part of a major assault that started earlier this week to drive IS from the western half of Iraq's second-largest city.

By afternoon, they had entered the Ghazlani military base south of the city, as well as the airport.

Iraqi helicopters circled above Mosul firing down onto the city's southwestern edge.

Coalition and Iraqi airstrikes that hit targets inside Mosul sent plumes of white smoke into the air on the horizon.

"We've broken the first line of IS defenses," said Iraqi special forces Lt. Yaser Mohsen, whose troops captured the key village of Tell al-Rayan, where Islamic State snipers had been slowing the government offensive.

They then moved to the edge of Mosul's western Mamun neighborhood, where they were working to surround it before punching into the city.

Several armored coalition vehicles could be seen in the line of military vehicles, and security officials said coalition troops were embedded with the forward advancing forces, advising the Iraqi troops as they conducted the assault.

The officials spoke to The Associated Press on condition of anonymity because they were not authorized to talk to reporters