I saw a UFO flying around the Peruvian sky at night.I was traveling down the Ucayali River in Peru. I was on a barge with hammocks strung up as beds. I was lying in my hammock one night- and I looked out of the window. The stars were very bright and beautiful. I saw one light move; I thought it was a plane or satellite. So I kept watching it. Suddenly, it jolted back. It started travelling across the sky; flying up and down, and side to side; diagonally as well.((NUFORC Note: Witness indicates that date of incident is approximate. PD))