An RAF jet with the UK defence secretary on board had its signal jammed as it flew near the Russian border earlier this week.

Axar.az informs, citing BBC, John Healey was travelling back to the UK on Thursday after visiting British soldiers in Estonia when the incident happened, the Times first reported.

Russia is believed to be behind the attack, which meant pilots had to use a different navigation system as the plane's GPS was disabled during the three-hour flight.

The incident took place a day after it emerged that two Russian warplanes had "repeatedly and dangerously" intercepted an RAF spy plane over the Black Sea last month.

It is not known if Healey was purposely targeted, but the newspaper reported that the flight's path was visible on aircraft tracking websites.

The Ministry of Defence has been contacted for comment.

During his visit to Estonia, Healey spoke to UK service members taking part in a Nato military exercise near the Russian border.