KABUL—At least 10 civilians, including eight Turkish nationals, are feared to be in the custody of the Taliban after a civilian cargo helicopter made an emergency landing in a remote area of eastern Afghanistan on Sunday, Afghan and Turkish officials said.

Eight Turkish nationals have been detained in Afghanistan after their chartered Mi-8 helicopter was forced to land, said Levent Gumrukcu, a spokesman at the Turkish Foreign Ministry in Ankara. He added that two crew members had also been captured.

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