One person was killed and two others were injured after a head-on collision on Kimberly Road early yesterday afternoon blocking the highway for about three hours.  71 year old Paula Greene of Filer, was traveling westbound when her vehicle drifted out of the lane of travel and crashed head-on with a vehicle driven by 65 year old Raquel Solis of Kimberly.   Greene's vehicle rotated around and came to a stop in the eastbound lanes of travel. Solis' vehicle went off the road, coming to rest northbound on the edge of the road.  Raquel Solis was pronounced dead at the scene.  Her passenger, 28 year old Luis Solis, also of Kimberly, was taken to Saint Luke's Regional Medical Center in Twin Falls with unknown injuries. Paula Greene was taken to Saint Luke's Regional Medical Center in Twin Falls and then later transported by air ambulance to Saint Alphonsus in Boise in critical condition.  Alcohol is not believed to be a factor in the crash.