(Oak Grove, OR) -- Police are investigating a crash that seriously injured an elderly bicyclist in Oak Grove. Authorities say the 85-year-old man was walking his bike yesterday evening in the median turn lane on 99E near Southeast Silver Springs Road, when he was hit by a pickup truck. Police say the cyclist was wearing dark clothing and had no reflective material on his bike, and is currently listed in serious condition. The driver of the pickup cooperated with the investigation.