A motorcyclist was injured in an accident in Danbury involving a pickup truck.  Danbury Police say the crash happened Saturday afternoon on Federal Road.  The motorcyclist, a 25-year old Brookfield man, was partially trapped under the vehicle with possible injuries to his lower extremities. Firefighters said the motorcyclist was conscious but confused.  Within minutes, the motorcyclist was transported to the hospital.  Police say the motorcyclist hit a pickup driven by a 51-year old Port Chester, New York man, who was uninjured.  The collision remains under investigation.