Sam Smith is shaken up after witnessing an alleged racial attack on his friend.
"Just experienced my friend getting verbally abused racially in London," he tweeted on Tuesday. "I am absolutely SPEECHLESS."
The 23-year-old singer did not specifically identify the person he was referencing, but did continue to speak out on the situation.
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"I never ever, ever, ever thought that would happen here. Absolutely speechless and hurt," he wrote. "I feel like I have to shine some sort of light on it. The police were so unhelpful in the situation and it's deeply shocked me."
"Humans are HUMANS," Smith continued. "I feel like I have to say something. I'm just so upset. So UPSET."
Smith has been spending time at his home in the U.K. as he takes a break from performing to work on his In the Lonely Hour follow-up. Earlier this month, however, he hit the red carpet in Los Angeles for the Golden Globes, where he nabbed the Best Original Song award for his Spectre theme, "Writing's on the Wall."
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Smith will return to the U.S. next month for the Academy Awards, where his track is up against offerings from The Weeknd and Lady Gaga, among others.
See what he said about going home to London in a recent interview with ET, below.