Washington (CNN) President Donald Trump and Turkish leader Recep Tayyip Erdoğan discussed "ongoing cooperation in Syria as US forces begin to withdraw" during a phone call Monday, just one day after Trump threatened to "devastate Turkey economically" if the NATO-allied country attacks Kurds in the region.

"The President expressed the desire to work together to address Turkey's security concerns in northeast Syria while stressing the importance to the United States that Turkey does not mistreat the Kurds and other Syrian Democratic Forces with whom we have fought to defeat ISIS," White House press secretary Sarah Sanders said in a statement about the call.

Sanders noted that Chairman of the Joint Chiefs Gen. Joseph Dunford will meet with his Turkish counterpart on Tuesday "to continue consultations" on Syria.

"Gen. Dunford is scheduled to meet with his Turkish counterpart this week on the sidelines of the NATO Military Committee in Chiefs of Defense Session, which will be held Jan. 15-16 at the NATO Headquarters, Brussels, Belgium," Col. Patrick Ryder, a spokesperson for Dunford told CNN.

Later Monday, Trump confirmed the phone call in a tweet.

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