Lights in the sky straight up, maneuvered, then straight down.Stepped outside in the evening and saw in the distance red and white alternating light ascend straight up from behind trees. The lights must have either been small or far away as they would blank out every time line-of-sight had it behind one of the power lines.We were unable to capture using cell phone cameras as the lights would not show up on the otherwise black screen.Lights appeared to be quite high in altitude, and made several back and forth flight patterns unlike what a plane would be capable of. (Helicopter, perhaps, but there was no noise) At one point the lights changed to blue, and ultimately descended straight down behind the trees in the distance to a similar location from where it arose. I thought perhaps it could have been a neighbor's remote-control helicopter or UFO, but was surprised at the extremely high altitude it appeared to be able to reach.