UPDATED 10/1, 3:50 p.m. ET: Further details regarding the arrest of UFC star Jon Jones have been made public, with TMZ sharing audio of the 911 call following his alleged assault on his fiancée.

“We've got a possible DV call. Domestic violence call. Female is bleeding from the nose and mouth," said the Caesars Palace security guard who called the Las Vegas Metro PD in the early hours of Sept. 24. The guard said Jones’ fiancée, Jesse Moses, was scared to return to her room because of the violence she reportedly faced at the hands of Jones.

The guard identified Jones as the aggressor in the incident, although he stressed she had not “admitted to any domestics” or physical violence during the call. “He’s actually a professional MMA fighter, Jonathan Jones, and she’s refusing to go back to the room,” the guard said on the call. He added that the situation was “a little weird” because Moses asked for assistance, refused to go back up to the room, and was with her three daughters.

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New details in UFC star Jon Jones’ arrest have been revealed. 

The MMA fighter, who was detained Friday in Las Vegas, allegedly pulled his fiancée’s hair and headbutted a police car before being apprehended, TMZ reports. MMA Fighting also viewed a copy of the Vegas Metro PD report.

Police were called over a “domestic disturbance”; fiancée Jesse Moses was discovered “bleeding from her nose/mouth” at Caesars Palace. Jones was detained near the hotel when he became “irate and smashed his head onto the front hood of the LVMPD patrol vehicle.” The incident caused a medium-sized dent and paint chips. 

Moses spoke to police after, reportedly saying Jones “was not very happy” when he came back from a night out with friends, and that their interaction was “not too physical but a little bit.” A security guard at the hotel called the police when they saw blood on Moses. One of Jones’ and Moses’ children allegedly asked the guard if they could “call the cops.”

When speaking with authorities, Moses apparently claimed Jones “touch[ed] the back of my head and pulled my hair a little bit but he did not hit me or anything.” Police said they noticed blood on her lips and sweatshirt, as well as on their bedsheets in the hotel; she said her lips were dry.  

“She still seemed very scared as to the release of Jonathan from jail,” the report said.

Jones, who has a court date on Oct. 26, was arrested for misdemeanor domestic battery and felony tampering with a vehicle. He reportedly resisted arrest as he was taken into custody, and said he would file a “huge lawsuit” against the police department over the incident, which happened hours after he was inducted into the UFC Hall of Fame. Moses and Jones have been together for 17 years with three children together. 

Jones reportedly claimed the pair had been “arguing about the tension between them,” but denied he touched her or pulled her hair on Friday. Police claimed he also joked about the arrest, saying “he would like to take us all on and see what we could do.”

“It’s not even shocking anymore,” UFC President Dana White previously said. “When we bring him here, it’s almost expected. We can’t even get him to Las Vegas for less than 12 hours and induct him into the Hall of Fame. It’s a problem. This guy’s got a lot of demons, man, a lot of demons.”