“Putting into operation 4G networks, and then 5G, will help Londoners and city guests to stay in touch and receive up-to-date information on the way,” Khan quoted RIA Novosti as saying.

Currently, cellular communications in the London Underground tunnels do not work. It is noted that Wi-Fi hotspots are set at the stations, however, you can access the Internet only while on the platform.

In March, Indonesian President Joko Vidodo opened the country's first metro line.