It is claimed the video was leaked from the US Homeland Department
The almost four minute long footage is being taken seriously by UFO and alien researchers and was placed online by a group calling itself the Scientific Coalition for Ufology (SCU).
According to the SCU website, its researchers say the UFO “exhibits characteristics that cannot be explained by any known aircraft or natural phenomenon”.
The video was allegedly captured by a DHS camera on one of its aircraft.
The SCU site claims a DHS whistleblower leaked the video and a number of witnesses have come forward.
All are believed to have requested anonymity.
The group says it spent two years investigating the footage before releasing a 161-page report and going public for the first time this week.
Six named scientists and researchers are said to have conducted the research.
The UFO incident allegedly began at about 9.20 pm on April 25 2013 at the Rafael Hernandez Airport in Aguadilla, Puerto Rico and was “monitored by the crew of a DHC-8 Turboprop aircraft from US Customs and Border Protection (CBP) – part of DHS.
The object appears to move very quickly over land and then into the ocean and seems to tumble or change shape.
Nick Pope, who formerly investigated UFO sightings for the Ministry of Defence, is intrigued by the footage.
He said: “Assuming the video isn’t a clever hoax – which is always a possibility these days – it’s a fascinating piece of footage.
“About the only conventional explanation that might fit the bill is that this is some new drone, but the entry and exit from the sea and the apparent splitting in two of the object makes even this explanation seem unlikely.
This is exactly the sort of video that I and intelligence specialists at the MoD got most excited about, as the available data allows for a proper, scientific analysis.
I’ll be watching developments on this one with interest.”
A US Customs and Border Protection Bombardier DHC-8Q200
It also appears to fly over buildings and through trees before seemingly moving in and out of the ocean without slowing down.
By the end of the footage, it either splits into two, or another object appears.
Daina Chaviano, a Cuban-born fantasy and sci-fi author and UFO researcher, claims to have first been contacted by an acquaintance of the source, before putting the initially “skeptical” team together.
The SCU website said: “The source of this video evidence was vetted and identified.”
They claim to be “absolutely certain” the information came from sources on board the DHS aircraft and the “video is genuine”.
According to the report the DHC-8 took off on a routine flight and soon after take-off the crew noticed “a pinkish to reddish light over the ocean approaching towards the south.”
They were “concerned” at the tower not informing them of incoming traffic, so radioed it in.
It is claimed the response was the “tower told them they also had a visual on the object, but they were unsure of its identity.”
At this stage, it is claimed, as the object neared land, it turned its lights off, but the DHC-8 could track and film it with onboard thermal imaging equipment.
A still from the “thermal image video”
According to the source, a further flight was allegedly delayed due to the object.
SCU claimed airport records confirmed a FedEx flight scheduled to leave at 9:10 pm was delayed until 9:26 pm.
The team has released details from a Freedom of Information (FOI) Act request response which purportedly shows the DHC-8 took off at 9.16 pm and circled the airport twice before leaving the area after 10 minutes.
Further dates released is said to show the tower tracked on radar an “unknown object” minutes before the DHC-8 took off which was offshore to the north and north waist of the airport from 8.58pm to 9.14pm.
The report states: “The object was between three to five feet in length and its speed varied between approximately 40 mph to 120 mph. Its median speed was roughly 80 mph.”
It said the object “apparently submerged into the ocean for over half a mile and flew back out.”
The authors determined it came in from the ocean, north or northwest of the airport, flew the airstrip, then turned back to the north and headed back to the ocean.
The “researchers ruled out a theory the object was a balloon as wind speeds of “eight to 13 mph” at ground level and 12 to 18 mph at 400 to 3,200 feet”, meaning the object “was moving too fast to be carried by wind currents,” plus it seemed to submerge in water.
Another possibility they looked at was it being a bird, but said a peregrine falcon’s top speed in stoop was 69 mph.
A USC graphic showing the flightpath of the object and craft
One option given most credence was a secret Naval test of a “flimmer” drone which can fly and dive under water, but has an air speed of 68mph.
But they questioned why this would be done in civillian areas near an airport.
The report concluded: “There is no explanation for an object capable of traveling under water at over 90 mph with minimal impact as it enters the water, through the air at 120 mph at low altitude through a residential area without navigational lights, and finally to be capable of splitting into two separate objects.
“No bird, no balloon, no aircraft, and no known drones have that capability.”
UFologist ALEJANDRO ROJAS, editor of Open Minds Magazine, who was not involved in the research has called the case “remarkable.”
He said: “Is alien technology being demonstrated in this video? This careful report, which the researchers say took over 1,000 man hours to complete, indicates that whatever took place, it is certainly unusual.
“The entire report is 161 pages long, and thoroughly explains their work, and how they came to the conclusions they did.
“Even if the report had come to a mundane conclusion, the effort put into the investigation is remarkable.
“However, the fact that they could not determine what the object was, and have determined that it displayed characteristics that cannot be explained, makes the report remarkable.”