The leader of Tandridge District Council, Catherine Sayer, said the area around the sinkhole was ‘not stable enough for borehole testing’.

His death was a major blow for the Iran-backed group that he had transformed into a potent force in the Middle East.

The Flying Scotsman, which entered service on February 24 1923, was in action as part of the celebrations for 200 years of British passenger rail services. In 1934, it became the first locomotive in ...