Khloe Kardashian and her sisters were apparently told that Lamar Odom had died around the time he was found comatose in a Las Vegas-area brothel in October 2015.

During a preview clip for Keeping Up with the Kardashians Ten Year Anniversary special -- which will air on Sunday, September 24 -- the Kardashian sisters recalled how Kim Kardashian was the first one to break the bad news about Lamar's near-fatal drug overdose to the family.

"I landed in London and the first text that popped into my phone, it was from Kim and it had said, 'Lamar passed away,'" Kendall Jenner revealed to the special's host Ryan Seacrest.

"I, like, immediately started sobbing on the plane. Then I got -- the next text came through saying, 'Okay, actually he's okay, he's alive, but he's not doing well.' That's why I was so upset, because I wanted to be there to be able to say goodbye."

Kim was apparently the victim of a sick joke, as Lamar survived the incident even though the quality of his future remained uncertain for quite some time while he was in the hospital. 

"On the plane, they said he died," Khloe, Lamar's ex-wife, reiterated. "Someone faked it."

"Someone had made a fake account and emailed me with the wrong information," Kim explained to Ryan. "And so, just seeing Khloe..."

"I was screaming," confessed Khloe, who married Lamar in 2009 but finalized their divorce in December 2016.

"She just fell and screamed on the plane," Kim revealed.

"But to think and go through the motions as if someone had passed away is the most traumatic thing to do," Khloe recalled of her own experience. "And then to know they're really alive -- it was too many emotions, I think, for any of us to handle."

Khloe first filed for divorce from Lamar in December 2013 due to his infidelity and drug abuse, which he later came to admit. But once Lamar overdosed and almost died, Khloe delayed the court proceedings to support his long road to recovery.

"She was the first thing I saw [when I woke from a coma]... She played a major role in me getting my memory back," Lamar explained to People in late March.
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"She would bring pictures of my mother and my grandmother. I kept thinking, 'Am I paralyzed forever? Am I mute forever?' It was scary sh-t. Faith got me through. I was just blessed to be around her."

Lamar slowly regained his ability to walk and talk, and he reportedly completed a rehab stint in January 2016. However, reports and photos surfaced not long afterward of Lamar drinking alcohol again, much to Khloe's shock and disapproval.

Khloe -- feeling helpless and emotionally drained -- finally decided to refile the divorce papers in May 2016 and officially end her relationship with Lamar.

According to People, Lamar survived 12 strokes and two heart attacks in October 2015.