"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."