A motorcyclist was seriously injured in an accident in Brookfield Saturday night.  Brookfield Police were notified by several motorists of a crash at the north end of Super 7 and its intersection with Federal Road shortly after 5pm.  The two adults and infant in the Subaru sedan were not injured.  The motorcycle operator was taken by ambulance to the Danbury Hospital Emergency Department with apparent serious injuries.  The accident remains under investigation, and names are not being released at this time until the family of the motorcycle operator can be located and notified.  Super 7 was closed between Industrial Park Drive and the Elephants Trunk in New Milford until around 9pm.