The two envoys met at a hotel in Kuala Lumpur on the sidelines of a regional security gathering hosted by the 10-member Association of Southeast Asian Nations.
Washington has long been pushing its historic ally Turkey to step up the fight against the so-called Islamic State, something Ankara had until recently been reluctant to do.
That position changed after deadly attacks inside Turkey, some of which were blamed on Islamic State.
Turkey has since carried out a series of air strikes, claiming they were targeting militants from the Kurdistan Workers’ Party (PKK) in northern Iraq as well as Islamic State militants.
But observers say PKK fighters been on the receiving end of far more airstrikes that IS.
Last month Ankara also said it would allow US warplanes to launch attacks against Islamic State from Incirlik Air Base in southern Turkey.
The moves marked a significant increase in Turkey’s role in the fight against the militants, who have seized large areas of Syria and Iraq.
Turkey shares a 500-mile (800-kilometer) border with Syria, and a section of its southern frontier abuts directly with territory controlled by the IS group