http://www.bbc.co.uk/news/uk-29826814
A Royal Air Force fighter jet threatened to "shoot down" a Latvian cargo plane after it lost contact with air traffic controllers above Kent.
Two RAF Typhoons scrambled to intercept the Russian-made aircraft, breaking the sound barrier and creating a sonic boom.
They escorted the plane to Stansted Airport, where it was surrounded by police officers as it landed at 17:15GMT.
An airport spokesman said officers were later stood down and the cargo craft was allowed to continue its journey.