UFO Sighted In Puerto Rico Mountains March, 2014. The men who witnessed this UFO sighting are local farmers. In this video the UFOs are flying around the mountains in Puerto Rico. You can see at the start of the video that one UFO is coming down toward the mountains. After that, two more UFOs are sighted in the same video.The camera records the pair of UFOs over the mountains for a few seconds as they hover above the mountains.