An investigation was underway after an attack on San Francisco Mayor Daniel Lurie’s security team on Thursday evening left one bodyguard with head injuries in the Tenderloin neighbourhood.The mayor was not hurt in the attack and two suspects were arrested, one of whom had a previous run-in with the law.The incident happened in the Tenderloin neighbourhood just before 6 p.m. near Cedar and Polk Streets.Photos from local publication Mission Local showed moments shortly after the confrontation, with one of the officers treated at the scene. Later photos showed the arrest of at least one of the two men.Lurie’s office and the San Francisco Police Department confirmed the incident, saying two officers assigned to the mayor’s detail were in a physical confrontation with two unknown males. The officers, who had non-life-threatening injuries, requested backup. No other people were injured.Mission Local reporter Eleni Balakrishnan, who covered the Tenderloin, was there just moments after it happened.“Mayor Lurie was there, he was looking on, he was looking pretty concerned, and he told me that some men had tried to fight police officers,” Balakrishnan told ABC7 Eyewitness News. “It turned out that those were part of his security detail. He had a driver and another officer with him who had, I guess, intervened when they had asked some men to move out of the way, and the mayor was out of the car. He had stepped out to talk to these people, and I guess this officer had gotten involved, and things got physical. I’m not really sure how it began, but the officer told me that this man came at him, and then they kind of got into a scuffle.Balakrishnan also obtained video that showed the man and the bodyguard wrestling in the middle of the street.“…It seems like the man takes the officer down to the ground, and in that process, the officer told me he hit his head. He was bleeding out of the back of his head when I was there,” Balakrishnan continued.San Francisco Police identified the two men involved and had them in custody.It was not clear what Lurie was doing at the location at the time of the incident; he had no public events at that time.The San Francisco Police Officers Association also issued a statement, saying:“We are grateful that the officers assigned to the mayor’s security detail acted swiftly and courageously to protect him in a dangerous and unpredictable situation.”The SFPOA went on to say, “We wish our injured officer a full and speedy recovery and commend all involved for their bravery and decisive actions.”