Jail records showed that Combs was released after posting bail. The records showed that Combs' bail was $160,000, but sheriff's officials reached by phone said he posted $50,000. The reason for the discrepancy wasn't clear.
A representative from UCLA confirmed to Fox News that Combs, 45, was arrested on a charge of assault with a deadly weapon, which was a kettlebell. Later Monday, Los Angeles police updated the charges to three counts of assault with a deadly weapon, one count of making terrorist threats and one count of battery.
No one was seriously injured and campus police said they were investigating the incident.
According to TMZ, which first reported the arrest, UCLA strength and conditioning coach Sal Alosi was screaming at Justin as Combs watched from the sidelines. Combs allegedly confronted the coach in his office and was then arrested for assault.
Nathalie Moar, a spokeswoman for Combs Enterprises, said "I'm not commenting until all of the facts are sorted out."
UCLA Football coach Jim Mora later issued a statement saying, "I'm thankful that our staff showed the level of professionalism that they did in handling this situation. This is an unfortunate incident for all parties involved. While UCPD continues to review this matter, we will let the legal process run its course and refrain from further comment at this time."
Alosi gained a measure of infamy in football circles while a strength and conditioning coach for the New York Jets. During a December 2010 game against the Miami Dolphins, Alosi was caught tripping Nolan Carroll as the player ran down the field covering a punt. Alosi was suspended and fined as a result of the incident and resigned the following month. He has been the strength and conditioning coach at UCLA since 2012.
Justin Combs is a redshirt junior defensive back on the UCLA football team, which has been working out on campus. He has played in just a handful of games in his three years with the team.
The son of another major rap star also plays football for the Bruins. Snoop Dogg's son Cordell Broadus is a wide receiver who signed with the team this year.