Los Angeles County authorities launched an investigation after a 'physical altercation' killed a man. A man died in a "physical altercation" between two groups of people in Los Angeles on Saturday night, authorities said. A press release from the Los Angeles County Police Department said deputies responded to the 4900 block of Loveland Avenue in Bell Gardens around 8:00p.m. There were reports that there was a fight in the area. Law enforcement said when they arrived at the scene, police found an unresponsive man. He was immediately taken to a nearby hospital, where he was pronounced dead. “Investigators learned that a physical altercation occurred between two groups after the male was found unresponsive on the ground,” the sheriff's department said.