December 22, 20219:49 AM EST

By Jonathan Spicer and Giulia ParaviciniOrhan Coskun

A Bayraktar drone seen during a rehearsal for the Independence Day military parade in central Kyiv, Ukraine August 18, 2021. REUTERS/Gleb Garanich
Ethiopians who fled the ongoing fighting in Tigray region, gather in Hamdayet village near the Sudan-Ethiopia border, eastern Kassala state, Sudan November 22, 2020. REUTERS/Mohamed Nureldin Abdallah
 Villagers return from a market to Yechila town in south central Tigray walking past scores of burned vehicles, in Tigray, Ethiopia, July 10, 2021. REUTERS/Giulia Paravicini/File Photo

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Ethiopians who fled the ongoing fighting in Tigray region, gather in Hamdayet village near the Sudan-Ethiopia border, eastern Kassala state, Sudan November 22, 2020. REUTERS/Mohamed Nureldin Abdallah

ISTANBUL/ADDIS ABABA, Dec 22 (Reuters) – U.S. authorities have taken issue with Turkey over its sales of armed drones to Ethiopia, where two sources familiar with the matter said there was mounting evidence the government had used the weapons against rebel fighters.

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RegisterAdditional reporting by Tuvan Gumrukcu and Ece Toksabay in Ankara, Stephen Grey in Gashena, Ethiopia, Humeyra Pamuk and Daphne Psaledakis in Washington, and Katharine Houreld in Nairobi; Editing by John Stonestreet

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