Russia claims it scrambled a fighter jet to intercept a US spy plane that was flying close to the annexed territory of Crimea.
A Russian air force pilot used his mobile phone to record footage of the latest close aerial encounter between Donald Trump and Vladimir Putin's forces, it is alleged.
In the video, the pilot is seen holding his phone in a reflection as he films a large plane flying above his fighter jet and then pans down to show land and water below.
Russia's defence ministry claims a US P-8A Poseidon reconnaissance plane changed course when it was intercepted by an Su-27 fighter jet.
The US military has not yet commented on the claims.
The Russian defence ministry said: “An Su-27 fighter jet as part of the Southern Military District's air defences was scrambled to intercept the target.
“The crew flew the aircraft at a safe distance to the aerial target and identified it as a US P-8A Poseidon reconnaissance jet.”
The Russians claim the US plane “immediately changed the direction of its flight to fly away from the Russian state border”.
US forces are participating in Nato's Sea Breeze naval drills in the Black Sea.
The Russian Navy has its own "combat training" exercises in the Black Sea, reported Moscow media.
The Russian military newspaper Red Star claims Kremlin warplanes have been scrambled three times in the past week “to block foreign aircraft from illegally entering Russian airspace”.
Moscow claims 26 foreign surveillance aircraft have been spotted by its forces near its airspace over the past seven days.
In mid-June, Su-27 fighter jets were scrambled to intercept US strategic bombers approaching the Baltic and Black seas, claimed Moscow.
Crimea is a disputed territory after Russia annexed the peninsula from Ukraine in 2014 during the crisis in the former Soviet republic.
Russia's control of Crimea, where its Black Sea Fleet is based, means it is able to control shipping flows through the Kerch Strait.
In May last year, Putin opened a bridge between the Russian mainland and Crimea, tightening Moscow’s hold over the territory.
Moscow has backed a pro-Russia insurgency in eastern Ukraine in an armed conflict that has killed thousands.
The UK Foreign Office warns holidaymakers on its website: "Russian forces and pro-Russian groups have established full operational control in Crimea.
"Following an illegal referendum on 16 March 2014, Russia illegally annexed Crimea on 21 March 2014 and tensions remain high."
Britain's Foreign & Commonwealth Office currently advises against all travel to Crimea, in addition to Donetsk oblast and Luhansk oblast, where fighting between Ukrainian forces and Russian-backed separatists has raged since April 2014.
