Today, Turkey shot down a Syrian L-39 fighter plane belonging to the Syrian government forces in the province of Idlib, the Turkish Ministry of Defense announced on Twitter.
The Syrian military said Turkish forces targeted the warplane with a missile while it was conducting operations against "terrorist groups" in the rebel-held Idlib region.
The fate of the crew is currently unknown.
Turkey has sent thousands of troops to Idlib to support opposition fighters who remain there, but has failed to halt the advance of government forces.
Turkish President Recep Tayyip Erdogan said he hopes to reach an agreement on a ceasefire in Syria at a meeting with Russian President Vladimir Putin in Moscow later this week.
The Russian offensive on the last rebel-held area has led to increasingly frequent clashes between the Syrian and Turkish armies that have killed dozens of soldiers on both sides. It also threatened a collapse in Turkey's cooperation with Moscow, a key support of Syrian President Bashar al-Assad.
One Turkish soldier was killed and another wounded last night, bringing the death toll this month to 55 in clashes with Russian Syrian forces, the Turkish Defense Ministry said.
The death toll includes 33 Turkish soldiers killed last Thursday in an airstrike.
The offensive by government forces has also sparked one of the biggest humanitarian crises of the Syrian war as nearly a million Syrian civilians have fled north towards the Turkish border.
Annoyed by attacks on its forces in Syria, Turkey has opened its western borders to thousands of migrants and refugees seeking to enter Europe, creating chaos at its land and sea borders with Greece.
It is the latest push by Ankara to pressure the European Union to help deal with the consequences of the disastrous Syrian war, as Turkey is already home to more than 3,5 million Syrian refugees.
British Foreign Minister Dominic Raab, who arrived in Ankara today, expressed solidarity with Turkey.
"We support Turkey's efforts to restore the truce agreed in 2018 and protect civilians fleeing the Syrian regime's monstrous attack," he said during a joint press conference with his Turkish counterpart Mevlut Cavusoglu.
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