"On July 17 Russian radio-technical facilities recorded the operation of the Kupol radar station of the Buk-M1 system located near the settlement of Styla (30 kilometres, 18 miles, south of Donetsk)," the defence ministry said in a statement carried by Russian news agencies.
The ministry added that a Buk missile could have been launched from systems stationed in the villages of Avdeyevka or Gruzsko-Zoryanskoye, both around the eastern Ukrainian city of Donetsk.
AFP