Armenia said Tuesday that a Turkish F-16 fighter jet had shot down one of its SU-25 warplanes after taking off from Azerbaijan amid fierce clashes over the breakaway Nagorny Karabakh region.

"An Armenian SU-25 aircraft has been shot down by a Turkish F-16 warplane which flew from Azerbaijan's territory," Armenian defence ministry spokeswoman Shushan Stepanyan wrote on Facebook, adding that the "Armenian pilot has heroically died."

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