A group of young people on bikes battered and robbed a man in San Francisco Saturday afternoon after he tried to tell them to slow down, police said. The battery and robbery happened just before 3 p.m. along the 900 block of Beach Street near Aquatic Cove, according to police. Citing a prelimi nary investigation, police said the man attempted to tell multiple juveniles on bicycles to reduce their speed. One of the juveniles responded by battering the man, sparking a verbal confrontation between the victim and the juveniles, police said. The altercation escalated when more juveniles battered the victim as he tried to flee. The juveniles chased after the man and continued to batter him as he tried to get away, police said. One juvenile stole the victim’s property in the process, prompting the victim to try to get it back. Bystanders confronted the juveniles, causing them to take off but leave the man’s property behind, police said. The man suffered non-life-threatening injuries, according to police. An investigation is underway. Anyone with information is urged to call San Francisco police at 415-575-4444 or text a tip to TIP411 and start the message with SFPD. ...read more read less