Passenger and freight trains have begun scheduled services through the Gotthard Base Tunnel, marking the completion of a record-breaking project.
The first two trains to use the tunnel left Zurich and Basel for Lugano, Italy, at 6:09 am and 4.55 am respectively on December 11.
Journey times between Switzerland and Lugano will be shortened by around 30 minutes and the number of freight services will increase from 180 to 210 a day.
From 2020, passengers travelling between Zurich and Milan will see journey times cut by around an hour and freight services through the tunnel will rise to 260 per day.