Sir Richard Branson’s ambitious plans for 700mph “hyperloop” trains that transport passengers between cities in minutes are facing further upheaval after three members of his company’s board left and a fourth was arrested in Russia.
The British billionaire invested in the Los Angeles start-up Hyperloop One last year and renamed it Virgin Hyperloop One, taking control of the company’s board after its previous chairman left last year under a cloud of sexual harassment allegations.
It has now emerged that three heavyweight directors left the board in a shake-up at the end of last year. Jim Messina, a former adviser to Barack Obama, Jim Rosenthal, a former Morgan Stanley executive, and Peter Diamandis,...