美国空袭伊拉克战略重镇提克里特

Warplanes from a U.S.-led coalition launched airstrikes against Islamic State targets in the Iraqi city of Tikrit on Wednesday, after Prime Minister Haider al-Abadi requested support for a month-old offensive to retake the strategic area.

Iraqi troops and Shi'ite militias have been battling on the ground, and had resisted asking for outside air support, but after quick gains outside Tikrit, the effort stalled.

U.S. Lt. Gen. James Terry, who commands the coalition effort, said the airstrikes will better enable the Iraqi forces to oust the militants.

"These strikes are intended to destroy ISIL strongholds with precision, thereby saving innocent Iraqi lives while minimizing collateral damage to infrastructure," he said.

Tikrit is the capital of Salahuddin province, an area located between the capital, Baghdad, and Iraq's second largest city of Mosul that has been controlled by Islamic State fighters since June.