Video above: The FOX 5/KUSI video above provides driving safety tips. SAN DIEGO (FOX 5/KUSI) -- A 29-year-old motorcyclist is in critical condition following a Saturday evening crash in Sunset Cliffs, authorities said. According to the San Diego Police Department, the rider was operating a bl ue 2013 Harley Davidson Iron 883 southbound on the 1200 block of Sunset Cliffs Boulevard around 6:30 p.m. The man reportedly lost control while navigating a curve in the road and fell off the bike. The rider, whose identity was not released, suffered multiple injuries, including scattered abrasions, a spinal fracture, a skull base fracture and a laceration to his leg. Police said his injures are considered life-threatening. SDPD's Traffic Division is currently handling the investigation into the incident. At this point, authorities believe that alcohol may have been a contributing factor in the crash. No further details have been released at this time. Anyone with information related to the crash is encouraged to call Crime Stoppers at 888-580-8477. ...read more read less