Elite Iraqi forces backed by U.S.-led coalition strikes broke Islamic State defenses in Fallujah on Friday, seizing the municipal compound and other buildings in the center of the city.
The breakthrough shifted momentum in the offensive that has raged for weeks, Iraqi officials said Friday's attack was a coordinated effort by some of Iraq's best forces, including counterterrorism units, Army commandos and federal police.
There is still much to be done, however, as Iraqi government forces control about one-quarter of the city, the Pentagon said.
Holding the center of the city will also give the government troops a tactical edge, allowing the Iraqi forces to attack enemy positions from behind or on their flanks.