[Video Courtesy: YouTube/UFODI]

Thousands of people who participated in protests in Sao Paulo, Brazil, witnessed an Unidentified Flying Object (UFO) hovering over the skies late on the evening of 17 June. One of the protestors recorded a video, which has been circulating on the Internet.

Sceptics believe the UFO is probably only a drone, controlled by a pilot on the ground.

Uploaded on YouTube by UFO Disclosure News (UFODI), the owner's comment's read: "I've seen many of them, but never could get them on video. This was filmed on June 17th about 5:30 pm. It was flying about 500 ft off the ground, hundreds of people saw the UFO. It was not wind and it was like nothing most people have ever seen. The location was Sao Paulo downtown, Largo da Batata."

Unfortunately, no other videos of the sighting are available at the moment. The YouTube user has confirmed that there is a search on for more recordings, explaining: "We are trying our outright best at getting another video and when we do! It will be a ground breaker."

UFO Sighting By Truck Drivers in Penn, USA
UFO Sighting By Truck Drivers in Penn, USA Image Credit: UFO Sightings Daily/ MUFON

Meanwhile, on the same day, in Pennsylvania, USA, truck drivers spotted a UFO as well. The case was reported on by American non-governmental organisation Mutual UFO Network (MUFON).

The case file reads: "Driving tractor and trailer sounth in PA. Looked up and saw object hovering over mountain top. About that time other Truckers where heard on CB chatting about seeing the same thing. The object was quite a distance away but was still very visible. So actual size was very big. Not sure exact location however it was close to the Allegheny Tunnel."

Last week, two disc-shaped UFOs were photographed by a man from Berkshire. Also, a UFO report came from London when an object was spotted flying past in the background of a Russia Today news recording.

Another UFO was photographed in the skies above Muiderslot Castle outside Amsterdam earlier this month. In May, there were reports of UFOs photographed over mountains in Canada.