First hydrogen train runs for 1st time (no harmful emissions) (2) (UK) BBC News 30th September 2020

First hydrogen train runs for first time on the network rail lines, taking the next step and what this means and what now has to be done to get it for a more commercially passenger-carrying service.

First part (1) of the initial trials in June 2019 can be seen here: https://youtu.be/h621oDufY6A