A triangular UFO crosses the sky quickly on February 10, 2014 at 20:26 hrs. This video is filmed with Yukon Ranger night vision system while doing the surveillance. While recording this object suddenly passed over the camere.The video was recorded in the town Atizapán of Zaragoza, Edo. of Mexico. This recording is excellent, because we had not seen a single object of these conditions so far. It is a clearly TRIANGULAR UFO.