Sonoma County Supervisor Efren Carrillo was arrested in San Diego on Labor Day after an early-morning fight outside a popular nightclub that left one man unconscious.
Carrillo, 31, was booked on charges of battery causing serious injury, a felony, and disturbing the peace, a misdemeanor, San Diego police Lt. Andra Brown said.
Carrillo was released Monday after posting $10,000 bail, according to the San Diego County jail.
He refused to return repeated phone calls seeking comment Wednesday, and his aide said Carrillo would not discuss his arrest until he returns from a trip abroad in nearly two weeks.
The fight broke out at 2:10 a.m. Monday on a street in the city's Gaslamp District, a bustling downtown area crowded with bars and restaurants.
Carrillo issued a written statement Wednesday saying he was protecting female friends who were being harassed by "rowdies" when he stepped in to defend them.
"I was in San Diego for Labor Day weekend on my own personal business. I was socializing with a group of friends when rowdies approached our group and harassed women in our group. I stepped in to protect them. I'm anxious to tell my side of the story during legal proceedings," according to the statement.
Prosecutors have not determined if they will file charges, said Steve Walker, a spokesman for the San Diego County district attorney.
Carrillo's arraignment is set for Oct. 15.
He was scheduled to depart this morning on a long-planned trip to Russia with a 23-member delegation from Fort Ross State Historic Park.
Susan Upchurch, his district director, said she believed he was in San Francisco on Wednesday, and added that he will not make himself available to discuss the incident until he returns for the Sept. 18 Board of Supervisors meeting.
"It is a legal matter. He has issued a written statement," she said.
Fellow supervisors said Carrillo had not discussed the incident with them Wednesday.
"I have not spoken to Efren since last week. I understand his office has issued a statement," said Shirlee Zane, chairwoman of the Board of Supervisors.
Valerie Brown, who has been on a two-week trip to Missouri, said she learned about it when she received an email press release from Carrillo on Wednesday. She also had not spoken to Carrillo.
"I just found out about it today," Brown said. "I didn't even know he'd gone to San Diego."
Supervisor David Rabbitt said he hadn't spoken to Carrillo about the incident but expressed his support.
"I don't know the facts, but I'm supportive of Efren as a friend and a colleague and hopefully it will adjudicate itself out and the truth will come out as he moves forward," Rabbitt said. "I think it's safe to say that he feels a certain disappointment just having to go through the circumstances."
Supervisor Mike McGuire also hadn't spoken to Carrillo.
"Efren is one of the hardest-working people in local government. All I know is what I read in the newspaper, and I think it's a mistake to speak on the issues until the legal process is concluded," McGuire said.
Carrillo briefly returned to Sonoma County after he was released, appearing in public Tuesday night at the Sebastopol City Council meeting. He addressed the council during a program presented by the Sonoma County Water Agency on a proposal to create a public agency to purchase power for Sonoma County and its cities.