Two YouTubers went ghost hunting at the infamous Alcatraz prison in California and experienced unexplained screams and noises while walking through the cells.
Shane Madej and Ryan Bergara, the hosts of Watcher Production's "Ghost Files," went to the prison off the coast of San Francisco to investigate the rumours of it being haunted.
While Shane said he identified as a "sceptic" of the supernatural, Ryan says he is a "believer".
