Istanbul, Turkey (CNN)A warplane of "unknown nationality" crashed Tuesday on the Syrian side of the Turkish-Syrian border, according to Turkey's semi-official Anadolu Agency. The cause of the crash remains unclear, the news agency reported.
The Turkish government is strongly opposed to the Syrian regime of Bashar al-Assad. Skirmishes between Turkish and Syrians have taken place in the past, with Turkish officials accusing the Syrian planes of violating Turkish air space.
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