Sam Smith was reportedly involved in an incident centered on racial slurs while out at a popular London bar on Tuesday night. It is not yet clear whether Smith was just a witness to the incident or whether he is at all implicated.

Questions arose about what happened Tuesday after a London native tweeted that Smith screamed “black c*nt” outside the Soho bar Freedom. Said Twitter user Simon Wallerus, “I have to say, @samsmithworld screaming ”black c*nt’ outside @freedombarsoho is something special to witness on a tuesday…!”

I have to say, @samsmithworld screaming ''black c*nt' outside @freedombarsoho is something special to witness on a tuesday…!

— Lord Wallerus (@Waller05) January 20, 2016

Meanwhile, Smith said on Twitter that he was left “speechless and hurt” after a friend was verbally abused with racial slurs. “Just experienced my friend getting verbally abused racially in London. I am absolutely SPEECHLESS,” Smith said. “I never ever ever ever thought that would happen here. Absolutely speechless and hurt,” he added.

Just experienced my friend getting verbally abused racially in London. I am absolutely SPEECHLESS.

— samsmith (@samsmith) January 20, 2016

I never ever ever ever thought that would happen here. Absolutely speechless and hurt.

— samsmith (@samsmith) January 20, 2016

Smith continued to discuss the incident until the early hours of Wednesday morning: “I feel like I have to shine some sort of light on it. The police were so unhelpful in the situation and its deeply shocked me. Humans are HUMANS. I feel like I have to say something. I’m just so upset. So UPSET.”

I feel like I have to shine some sort of light on it. The police were so unhelpful in the situation and its deeply shocked me.

— samsmith (@samsmith) January 20, 2016