The train station accident in barcelona had left 50 people injured

I'm not aware of any recent train station accident in Barcelona that left 50 people injured. It's possible that you may be referring to a different incident or location.

However, I can suggest some possible sources where you can find information about recent accidents in Barcelona:

1. Local news outlets: You can check the websites of local news outlets in Barcelona, such as El Periódico de Catalunya, La Vanguardia, or El Nacional, to see if they have reported on any recent accidents at the train station.
2. Official sources: You can also check the official website of the Spanish railway company, Renfe, or the Barcelona City Council's website to see if they have issued any statements or updates on accidents at the train station.
3. International news sources: You can also check international news sources, such as BBC News, Al Jazeera, or Reuters, to see if they have reported on any recent accidents in Barcelona.

If you could provide more information or context about the accident you're referring to, I may be able to help you find more information about it.