A UFO sighting is getting attention after a time-lapse video showed the object circle and fly into the Popocatepetl volcano crater, although skeptics have called into question the validity of the footage.

The volcano, roughly 40 miles south of Mexico City, is monitored by Mexican media company Televisa. According to the Huffington Post, the above UFO video was captured on May 30. 

A similar video was recorded last November, showing an oblong object flying to the same volcano in Mexico. Several experts responded to Huffington Post's requests for comment on the November UFO sighting, which can be seen below. 

"What I think is that this is not a likely fake. I think, for the moment, this is a genuine image capture," said special effects specialist Marc Dantonio.

"This is a low light camera (which) allows the volcanologists studying the footage to see any incandescence on the flank of the volcano in night shots. As such, any brighter lights that are captured will appear very bright, as the one planet/star indicates."

However, the video has been called into question due to its time-lapse quality.

"When played back at normal video speeds, the object is made to appear to be moving very fast, but, in fact, it is moving at aircraft speeds if you play it at the proper frame rate for the capture," continued Dantonio.

According to UFO Sightings Daily coordinator Scott C. Waring, the volcano is "famous for its UFO seen over its crater and often the UFOs will enter it."

But the skeptics are not buying the UFO theory quite yet.

While Dantonio agrees that the flying object "is turning at a rate consistent with aircraft, the case that it is descending is not at all made.

"In this case, the object is moving from right to left and appears to be descending, but it is exactly this behavior you see if an aircraft at altitude is heading away from you. this is the consequence of perspective and round Earth."

The flying object being asserted as being a jet is on the table, although UFO enthusiasts will continue to investigate the volcano with Televisa's help.

Watch the video of the November, 2012 UFO here: 

Update: Corrections were made regarding the date each video was recorded and comments made about each video. The original story, written by Lee Speigel, can be seen at The Huffington Post.