A renovation of the building was completed in 2016. Cosmetic cladding was added to the outside, with some experts suggesting it could have acted as an accelerant.
Sky’s Tom Cheshire reports on what went wrong.
SUBSCRIBE to our YouTube channel for more videos: http://www.youtube.com/skynews
Follow us on Twitter: https://twitter.com/skynews and https://twitter.com/skynewsbreak
Like us on Facebook: https://www.facebook.com/skynews
For more content go to http://news.sky.com and download our apps:
Categorised in: International