Two Russian warplanes "repeatedly and dangerously" intercepted an unarmed RAF spy plane over the Black Sea last month, the Ministry of Defence (MoD) has said, BBC reported.
A Russian Su-35 fighter approached the Rivet Joint surveillance aircraft, getting close enough to trigger its emergency systems, disabling its autopilot.
And a Su-27 jet also carried out six passes in front of the RAF plane, getting as close as six metres (19ft) from its nose.