A driver hit and killed a bicyclist in the Black Mountain Ranch area of San Diego on Friday evening, according to San Diego police. A 50-year-old woman was driving a 2015 Volkswagen EOS westbound on Camino Del Sur near Casey Glen Lane around 6:47 p.m. For unknown reasons, the woman drove into the bike lane, crashing into a man riding a bicycle. The man was pronounced dead at the scene, police said. Alcohol was not determined to be a factor in the crash. Police are investigating the incident. Anyone with information on the crash is asked to call the San Diego Police Department or Crime Stoppers at 888-580-8477.