Don Lemon was the target of racist death threats on Wednesday, and the threats were so explicit that he contacted the NYPD.

Lemon, who has been a longtime critic of Donald Trump and recently spoke directly to the president on his show over the controversy surrounding Trump’s remarks to the widow of La David Johnson, allegedly received several messages on Twitter that were concerning enough to get law enforcement involved.

–Don Lemon shares emotional open letter to Trump and Myeshia Johnson–

According to TMZ, the messages included statements like: “F*** you n***** can’t wait to stab your neck” and “U r a pile of rotting Dogsh**,racist,communist, socialist, Liberal moron a**hole,i will find u U will pay.ill see u real soon…”

The alleged user’s profile makes it clear that he is pro-Trump, and he describes himself as a “white nationalist conservative . pro gun anti islam anti terrorist anti leftist yes i HATE demorats,blm,antifa ,socialists. heavily armed racist.WLM.”

While Lemon filed a report for aggravated harassment, the charges could end up being upped to a hate crime.

The investigation into the matter is still ongoing, and no arrests have yet been made.