Rob Kardashian is mad, really, really MAD! Rob sent threatening text messages to Pilot Jones!

Greg Doherty, Getty Images

LAPD's Threat Management Unit is investigating Rob after he sent quite a few threatening messages to Pilot Jones, whose pics with Blac Chyna surfaced online! The pics of Blac Chyna kissing Pilot and him insinuating he might be the father of her unborn baby set Rob off, according to TMZ! Check out the text messages:

-- "And u fa***t ass bitch this is ROB and u did the most DISRESPECTFUL s**t ever by releasing pics and a story to a pregnant Woman who is 17 days from having a baby!"

-- "This is my Wife and you about to get your ass beat by every Mexican in LA including me."

-- "U f***ed with the wrong Woman and the wrong dude."

-- "I hope you religious cuz after I beat your ass with about 30 Mexicans u better hope God lets u into heaven."

-- "Its a wrap for u and after we beat your ass we will all be good and never contact Chyna ... u pu**y ass n***a."

-- "Don't ever come for me and my wife ever U corny ass n***a" ... and that's followed by a bunch of black fist emojis.

The LAPD continues to investigate, although we're told law enforcement views the texts as a little "murky and general."

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