BRUSSELS, Oct. 6 (UPI) -- NATO Secretary-General Jens Stoltenberg said Tuesday two incursions of Turkish airspace by Russian fighter planes over the weekend were apparently deliberate.
He called Russia's actions in Turkish airspace "unacceptable," and advised Moscow to "avoid escalating tensions" prior to a conference of NATO ministers in Brussels. Turkey, a NATO member, initiated an intercept mission of the Russian Su-30 fighter plane in the incident Saturday, and an official of Turkey's foreign ministry said another violation of airspace occurred Monday.