Three and EE have agreed a deal to join the BAI Communications (BAI) network that will provide 4G (and later 5G) connectivity across the London Tube.

Sadiq Khan, Mayor of London, said: “I’m delighted to see Three and EE sign up as the first operators to provide full high-speed 4G access across the tube network. This will make a huge difference to passengers, allowing them to make calls, read emails and check travel information while on the move.

“Investing in...