Turkish President Recep Tayyip Erdogan said Turkish soldiers had begun deploying to Libya after parliament approved such a move last week.
"Our soldiers' duty there is coordination. They will develop the operation centre there. Our soldiers are gradually going right now," he told CNN Turk broadcaster during an interview on Sunday.
The Turkish parliament passed a bill allowing the government to send troops to Libya aimed at shoring up the UN-recognised government in Tripoli.
The Tripoli government has come under sustained attack since military strongman general Khalifa Haftar launched his offensive in April.
Haftar is backed by Turkey's regional rivals, the United Arab Emirates and Egypt, while the UN-backed government has the support of Ankara and its ally Qatar.
Erdogan said Turkey's objective was "not to fight", but "to support the legitimate government and avoid a humanitarian tragedy".
Turkey's move comes after the Tripoli-based Government of National Accord made a formal request .
