UFC fighter Nick Diaz has been arrested following an alleged domestic violence incident in Las Vegas on Thursday evening.
The welterweight was being held in Clark County Detention Centre on Friday in Las Vegas, according to online records.
While the Las Vegas Police department has not formally confirmed that the 'Nickolas R. Diaz it arrested was the UFC star, a statement issued by the promotion confirms it.
"UFC is aware of the recent arrest of middleweight athlete, Nick Diaz," the promotion said in a statement.
"The organisation does not tolerate domestic violence and requires all athletes to adhere to the UFC Fighter Conduct Policy. Every athlete is deserving of due process and this situation, as with any official allegations, will be duly reviewed and thoroughly investigated by an independent party."
An unnamed source from within the Las Vegas Police force told MMAJunkine that 12 units were dispatched to the scene of the incident, the alleged victim - a female - was then taken to a local hospital.
Diaz's bail was set at $18,000 (£13,525). He remains in custody and cannot post bail until after a court hearing which was scheduled for Saturday at 9am.
News of the arrest comes in the wake of Nick's younger brother and fellow UFC fighter Nate Diaz, being investigated by the Sacramento Police Department in California, for an alleged assault on Clay Guida during a Combate Americas event held 11 May .
John Fosco, Guida's manager, confirmed the long-time UFC star filed a police report after the incident. It claimed that Diaz allegedly shoved him from behind without warning, sending him crashing into a metal guardrail.
Guida suffered a cut lip and was bloodied as a result.
Police have said that the initial stages of the investigation, which will include interviews of witnesses, as well as alleged suspects, could take several weeks.
Guida, who hasn't fought since his win against Joe Lauzon in November, is expected to face Bobby Green at UFC 225 on June 9th
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