Kansas City, Mo. ? Chiefs running back Larry Johnson turned himself in to police Monday night after an altercation he had with his girlfriend early Saturday at a Kansas City bar.

Police Department spokesman Darin Snapp said Johnson was cited for domestic abuse assault. Johnson posted bond and was released, with a court date set for Sept. 20 on the municipal charge.

Chiefs President Carl Peterson said Tuesday he didn’t know much about the accusation and wouldn’t talk about it until he knew more.

“We’re looking into the situation and we have very little information about it at this point. So we’re not going to discuss it any further until we have further information.”

Snapp said the incident began around 12:30 a.m. at The Drink when Johnson’s girlfriend came into the bar where Johnson was with a different woman.

The 25-year-old girlfriend, of Overland Park, Kan., saw Johnson and walked the other way, Snapp said, but Johnson text messaged her on her phone and asked her to meet him downstairs.

The running back then grabbed the woman by the arm and pulled her to the front door, according to the police report, where Johnson asked the manager to make her leave. But since she had done nothing wrong, the manager said he couldn’t kick her out, so she stayed, Snapp said.

Snapp said Johnson, 25, of Leawood, then became irate after his girlfriend confronted his date. He grabbed his girlfriend by the shoulders and shoved her, causing her to fall onto the floor, the police report said.

The accusations come less than two years after Johnson entered a diversion program for a Johnson County, Kan., incident during which he allegedly brandished a gun during an argument with an ex-girlfriend at his Leawood home. He was charged in December 2003 with aggravated assault, a felony, and misdemeanor domestic battery.

Under terms of the diversion Johnson was required to complete 120 hours of community service, attend an anger management course and stay out of trouble for two years.

Johnson County prosecutor Paul Morrison said he didn’t know much about the latest charge filed against Johnson, but if it’s determined he committed a criminal act, Morrison said his office would file a motion to revoke the running back’s diversion.

“What we do with professional athletes, regardless of what sport, regardless of whether they’re good athletes or bad athletes, is we try to hold them to the same standards as anyone else,” Morrison said. “He will not receive any breaks because he’s a great running back or whatever he is.”

On Sunday, Johnson ran for 110 yards and two touchdowns against the New York Jets.

Chiefs coach Dick Vermeil, who said he only learned about Johnson’s arrest on Tuesday, said his players knew that anything they did – or were accused of doing – would be magnified because of who they were.

“I think we do, led by (Chiefs director of player development) Lamonte Winston, as good as the best job in the National Football League of making sure players are aware of their vulnerability, their profile,” Vermeil said. “There’s no place to hide in Kansas City. Our fans know our players. To use common sense and to be aware of the problem areas. Stay out of the bad areas. Be aware of certain things.”

Vermeil said the incident would not affect Johnson’s standing with the team.

“The NFL security was standing right where I was standing last week, telling them how it is to be in the National Football League, how it is to be a target,” he said. “How there are organized plots and plans to get you one way or the other. But every once in a while someone gets trapped. We always assume our players are not guilty of any major problem until someone really clarifies it for us.”