UPDATED 5:00 p.m. ET: The New York Times reports police have confirmed that Davidson was OK following the scare. He's at work for Saturday Night Live, which airs its 2018 finale tonight (Dec. 15).

UPDATED 3:29 p.m. ET: Ariana Grande posted since-deleted tweets that seem to address Pete Davidson's note. "[I]’m so sorry i told a dumb joke," she said. "i really didn’t mean any harm. all i want everyone to be healthy and happy. so desperately. please. my god."

"I’m downstairs and I’m not going anywhere if you need anyone or anything," said the following tweet. "I know u have everyone u need and that’s not me, but i’m here too." TMZ reported that Grande is at 30 Rock, where Saturday Night Live is taped, to see Davidson if she gets a chance.

On his Saturday morning tweets on mental health, Kanye West called Grande out for referring to "grown men arguing" after his Thursday messages to Drake. She responded by apologizing for making a joke that was "probably insensitive." The offending tweet and that apology have also been deleted.

Actor Jon Cryer tweeted that he's heard Davidson is at SNL and "accounted for."

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Saturday Night Live star Pete Davidson shared a transparent note to his Instagram, mere minutes after praising Kanye West for being honest about his mental health struggles. 

The comedian, who is diagnosed with borderline personality disorder, said that he doesn't "want to be on this Earth anymore" while pledging he's doing his best.

"Just remember I told you so," he closed the note. He deleted his Instagram soon after posting it.

The post came shortly after he praised Kanye for his honesty about his own mental health issues. 

"Bravo Kanye West for standing up for yourself and speaking out against (sic) mental health," he wrote. "I can't explain to you enough how difficult and scary it is to be honest about stuff like this. We need people like Kanye. No one should ever point fingers at you for your bravery in speaking about mental health. I'm seriously disgusted."

Davidson has been candid about his own mental health problems, sharing how he copes in interviews and during appearances on SNL.

"I've been in and out of mental health facilities since I was 9," he said in an interview with Variety "The last few years have been real rough with me. I took all these mental health classes and really spent a lot of time getting me good." 

In that same interview, he noted that he had quit social media for his health. That's clearly fallen by the wayside. 

 "The internet is evil, and I don't like how it affects me," he said. "I don't like how the internet is a place where anybody can sh*t on you and make anything up...I can't go online like everybody else because it's just a f*ck-fest. And now I get to enjoy my life."