One person has died and 19 others have been injured after two hot air balloons crashed in Turkey.

The accident occurred near the Ihlara Valley in Aksaray province, the Ilhas News Agency said.

It is not immediately clear what caused the crash in central Turkey, where hot air ballooning is a popular tourist activity.

The attractions include the "fairy chimneys" of Cappadocia - tall, cone-shaped rock formations created by natural erosion over thousands of years that are a UNESCO World Heritage Site.

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Video shared by the news agency shows the deflated balloon, with its passenger basket lying on its side. Emergency services could be seen nearby, tending to injured people.