JUST IN: 
Russia issues official warning to the United States and NATO.
"Russian Ministry of Defense notes the increased intensity of flights of US strategic unmanned aerial vehicles over the Black Sea, which carry out reconnaissance and target designation of high-precision weapons supplied to the armed forces of Ukraine by Western states to strike Russian targets.
This indicates the increasing involvement of the United States and NATO countries in the conflict in Ukraine on the side of the Kiev regime.
Such flights greatly increase the likelihood of incidents in the airspace with aircraft of the Russian Aerospace Forces, which increases the risk of direct confrontation between the alliance and the Russian Federation.
NATO countries will be responsible for this.
The Minister of Defense of the Russian Federation Andrei Belousov instructed the General Staff of the Armed Forces of the Russian Federation to take prompt response measures to provocations."
