BAGHDAD (AP) -- Iraqi government forces on Monday pushed Islamic State militants out of some agricultural areas outside of Fallujah as they launched a military offensive to recapture the city from the extremists, officials said.
Backed by U.S.-led coalition airstrikes and paramilitary troops, Iraqi government forces launched the long-awaited military offensive late Sunday. The city, located about 40 miles (65 kilometers) west of Baghdad, has been under the militants' control since January 2014.
The commander of the Fallujah operation, Lt. General Abdul-Wahab al-Saadi, could not say how long the offensive would take, citing terrain, the number of civilians in the city and bombs planted by the militants. Al-Saadi added that the first phase aims to surround and bomb IS positions.
Federal police battalion commander, 1st Lt. Ahmed Mahdi Salih, said ground fighting was taking place around the town of Garma, east of Fallujah, which is considered the main supply line for the militants. IS holds the center of Garma and some areas on its outskirts.
Col. Mahmoud al-Mardhi, who is in charge of paramilitary forces, said his troops recaptured at least three agricultural areas outside Garma. Al-Mardhi added that airstrikes and artillery shelling intensified against IS positions inside Fallujah.
In the early days of the Sunni-led insurgency that followed the 2003 U.S.-led invasion that toppled Saddam Hussein, Fallujah emerged as the main stronghold for different militant groups opposed to American forces. The main group was al-Qaida in Iraq, which later spawned the IS extremist group. Fallujah was the site of two bloody battles against U.S. forces in 2004.
Flanked by senior military commanders, Iraqi Prime Minister Haider al-Abadi announced the beginning of military operations in a televised speech late Sunday night. He vowed to "tear up the black banners of strangers who usurped this city" and hoist the Iraqi flag.
Wearing the black uniform of Iraq's counter-terrorism forces, al-Abadi visited the Fallujah Operation Command and met with commander on Monday morning.
The offensive comes a week after Iraqi forces pushed IS out of the western town of Rutba, located 240 miles (380 kilometers) west of Baghdad, on the edge of Anbar province. Last month, Iraqi forces cleared territory along Anbar's Euphrates river valley after the provincial capital Ramadi was declared fully liberated earlier this year.