The incident disabled the plane's GPS for the three-hour journey, forcing pilots to use alternative navigation systems

The electronic attack struck a plane carrying John Healey as he made his way back to the UK after visiting troops stationed in Estonia.

An electronic attack on an RAF jet carrying defence secretary John Healey occurred as it flew close to the Russian border - pilots had to switch to a different navigation systet

John Healey was returning to the UK after visiting British troops in Estonia