The sight of a dark and near-perfect ring in the sky left pedestrians in India stumped. Many witnesses whipped out their phones and captured the sight, which sparked speculations of aliens possibly keeping an eye on Earth from afar.

One video, shared by Abul Hasan on Twitter, captured a street crowded with pedestrians, many of whom gawked at the circle in the sky, according to the Bharat Express News. Hasan uploaded the video on March 18 and wrote in the comments that he stumbled upon the sight in the capital city of Delhi.

Other videos shared on the internet also seem to have captured rings hovering in the sky over Delhi earlier this month.

Hasan’s video had caught the attention of avid UFO-hunter, Scott C. Waring who regularly posts strange sightings and unproven theories about aliens on his website, UFO Sightings Daily.

“An eyewitness in India took this 45-second video of crowds of people looking upward in astonishment at a UFO ring flying overhead,” Waring wrote on his website. “The object was a perfect circle and did not appear to be made of smoke.”

Waring claimed aliens made a mistake and did not intend to be exposed in the sky, according to Techno Trenz.

“The craft is very high up and because it was cloaked, we could not see the body of the craft, however because of the overcast day and static electricity in the air, it creates a ring around the UFO that the aliens had not planned on happening,” Waring wrote. “I'm sure the aliens were wondering how the hell the people below them were seeing them? You see, even aliens make mistakes.”

There is no credible report that explains the strange sight in Hasan's video. However, such mysterious shapes in the sky have been spotted in the past as well.

A schoolgirl had captured a black ring hanging in the sky over Leamington Spa, England, in 2014. The girl, aged 16 at the time, used her smartphone to record the ring, which appeared in the sky near Warwick Castle for around three minutes before disappearing, according to BBC.

People scratched their heads as umpteen theories came about to explain what the ring might be. But those theories were dismissed after Warwick Castle issued a statement that said they were testing fireworks.

A spokesperson for Warwick Castle said they were experimenting with “fire effects” that could be paired with the firing of their giant catapult, known as Trebuchet Fireball.

“We've seen a number of different effects, including the vortex images that have been reported," the spokesman was quoted saying. "As yet we don't know what causes the phenomenon but it's certainly a spooky spectacle."

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Representative image Credit: Pixabay / Peter-Lomas