The United States and Turkey say they are looking at all measures to help the rebels seeking to overthrow President Bashar al-Assad of Syria, including a no-fly zone.
US Secretary of State Hillary Clinton is in Turkey for talks and indicated that a no-fly zone was a possible option.
She told reporters that America and Turkey need detailed plans for what is happening in Syria.
The ABC reports that US officials see Turkey as a key player in planning for the collapse of the Assad government.