"CNN Tonight" host Don Lemon has received a series of racist threats by a self-proclaimed white nationalist who claims to be a supporter of President Donald Trump. The nature of the threats, which were received by Lemon Wednesday, were so frightening that Lemon contacted the police, TMZ reported.

Law enforcement sources informed TMZ the anchor had reached out to the New York Police Department (NYPD) Wednesday after allegedly receiving threatening messages on Twitter. Some of the tweets read: "F**k you n***** can't wait to stab your neck," and "U r a pile of rotting Dogshit , racist, communist, socialist, Liberal moron asshole,i   will find u U will pay.ill see u real soon..."

The bio of the Twitter user, who allegedly sent the threats, reads: "white nationalist conservative . pro gun anti islam anti terrorist anti leftist yes i HATE demorats ,blm, antifa ,socialists. heavily armed racist.WLM." It also mentions he is pro-Trump.

The complaint that Lemon registered with the police has been made for aggravated harassment, however, the TMZ report cited sources and said the complaint may be considered a hate crime.

Lemon has been a critic of the president and on Monday, he delivered a personal message to address the controversy over Trump's phone call with the widow of Sgt. La David Johnson, who died during an ambush in Niger on Oct. 4.

Lemon broke down while reading an open letter that he had penned down for Trump and Johnson's widow, Myeshia Johnson. "Dear Mr. President, I interviewed you multiple times. You’ve introduced me to your family. You’ve also criticized me publicly, both in front of cameras and on Twitter, calling me ‘hateful’, ‘dumb’, a ‘lightweight’ ... We know you get a lot of your news from TV," he said. 

"Several of your friends and supporters have told me you watch this show. So, since I have this platform, I’d like to speak to you personally right now. I feel compelled to do that after this latest controversy with the widow of Sgt. La David Johnson," he continued. "Your tweet this morning essentially called her a liar. Mr. Trump, please stop it. Please, stop. Think of what Sgt. Johnson would want."

In August, two Fox News hosts, both women, received death threats after they criticized Trump's remarks on air about the white supremacist rally in Charlottesville, Virginia, that turned deadly. "I should meet my maker soon, I shouldn't be allowed to walk the streets of New York," Eboni K. Williams told Variety.

"They heard that I live in Harlem — Harlem needs to watch out [one of the emails said]."

Along with Williams, co-host Kat Timpf also received threats after she too attacked the president. "I have too much eye makeup on to cry right now,' Timpf said on her show and added that Trump's news conference after the Charlottesville attack was “disgusting.”

Later, Timpf tweeted she received so many death threats that she had to block part of her Twitter feed and also stopped checking emails for some time. One message referred to her a "disgrace to the white race." Another message demanded that the Fox must purge the network of “snowflakes,” a disparaging term for liberals, Salon reported.