San Diego County fire crews are battling a fire that sparked on the Oceanside Pier. The City of Oceanside said the fire was reported at about 3:00 p.m. on Thursday inside the vacant restaurant formerly known as Ruby's Diner. Fire crews arrived at the pier five minutes after the flames were reported. The U.S. Coast Guard, CalFire, SDG&E and San Diego County firefighters are fighting the fire from the water and air. According to the City of Oceanside, employees from The Brine Box and Bait Shop were all accounted for. There were no immediate reports of injuries due to the blaze. The cause of the fire is unknown. MORE: https://www.cbs8.com/article/news/local/fire-erupts-on-oceanside-pier/509-83fcca06-0965-4ebe-9e3c-31f5febe7ac0