Las Vegas police are searching for a mixed martial arts fighter who they believe attacked his girlfriend and then fled.

Jonathan Koppenhaver is accused of beating porn star Christy Mack on Friday evening in an attack that left her with "serious" but not "life-threatening" injuries, cops told the Las Vegas Review-Journal.

The MMA fighter, who, according to the New York Daily News, was still on the run Monday, apparently tweeted the following from his verified account:

I can't believe this...I must be cursed. — War Machine (@warmachine170) August 8, 2014

The cops will never give me fair play, never believe me. Still deciding what to do but at the end of the day it's all just heart breaking. — War Machine (@warmachine170) August 11, 2014

I only wish that man hadn't been there and that Christy & I would behappily engaged.I don't know y I'm so cursed.One day truth will come out — War Machine (@warmachine170) August 11, 2014

The MMA fighter also tweeted, apparently in reference to Mack, "She's my property and always will be."

TMZ reports that he also tweeted, "@ChristyMack I love you and hope you're okay. I came him(sp) early to surprise you and help you set up for your convention. I can't believe what I found and can't believe what happened."

Koppenhaver's Twitter bio says he does "alpha male shit."