Rotund whitish green light traveling and zigzagging then disappearing at a very fast speed.Today at 10:30 pm myself my fiancée her sister and sisters boyfriend upon leaving a Restaurant located down a dark street just off the main road in (Camburizinho) Sao Sebastian SP we were walking to the parking lot witnessed a ufo in the sky travel from about 40 degrees NE to approximately 220 degrees SW. The objet approached in a straight line then quickly zig zagged NW to SE then continued on a path traveling SW. After the object passed overhead it zig zagged again NW to SE then suddenly disappeared in an upward direction. The object had a bright whitish green glow in the shape of a perfect circle. The distance looked to be about the same as a jet plane would travel approximately 30,000 feet. However for the distance it covered in such a short time would be impossible for a plane to travel not to mention the quickness it zig zagged. This was definitely an object not anyone of us had seen before. There was a light cloud cover and not one star was visible. The experience lasted about 10 second.((NUFORC Note: Witness elects to remain totally anonymous; provides little contact information. PD))