A woman walking across an Echo Park street was struck by a cyclist early this evening in a collision that sent both persons to the hospital with what police described as serious injuries. The woman was left unconscious and bleeding heavily after she was hit by the cyclist traveling down hill at about 6:30 pm. in the 1700 block of Morton Avenue near Academy Road, according to residents. Sgt. Edward Perez with the Northeast Division said a cyclist who was riding with the injured bike rider told him that both had been drinking before the crash. The red bike of the injured cyclist was left on the sidewalk after paramedics transported him and the female pedestrian to L.A. County-USC Medical Center for treatment. Perez said both appeared to have suffered serious injuries to their heads and faces.