Hulk Hogan -- 'Devastated over Chyna' ... 'Beautiful Soul'

Hulk Hogan is mourning the death of his former co-worker Chyna ... saying he's "devastated" over her death.

Hulk tweeted, "Devastated over Chyna passing,she dated Brutus years before wrestling,such a beautiful soul and so kind to my children,rip Joanie love u."

Triple H also tweeted ... "Someone who wasn't afraid to blaze her own trail & create a path for those who would follow. A pioneer whose star shined bright. #RIPChyna"

Stephanie McMahon -- "I just heard the tragic news that @ChynaJoanLaurer has passed. She was truly a pioneer in our industry, and she will be missed. #RIPChyna."

Mick Foley -- "Joanie, I'm so sorry. I will always treasure our friendship and will never forget your kindness to my children. RIP"

Diamond Dallas Page -- "Wow I just heard @ChynaJoanLaurer passed. Sad... My Prayers go out to you and your family Joanie. RIP my friend."

Kevin Nash -- "@ChynaJoanLaurer May the peace you were seeking put you at rest my friend. So sorry for not seeing the pain @Mania. We've shared so much"

The WWE also issued a statement saying the organization is "saddened to learn of reports that Joanie Laurer, best known for competing in WWE as Chyna, has passed away."

"A physically striking and wildly talented performer, Chyna was a true sports-entertainment pioneer. Not only did the Superstar dubbed “The Ninth Wonder of the World” help found the groundbreaking faction D-Generation X, but she also holds the distinction of being the first and only female to win the Intercontinental Championship."