A team of scientists, engineers and former military officers have made the case for the "most compelling" UFO footage as they urged Congress to release more data on a string of strange encounters.

The Scientific Coalition for Unidentified Aerial Phenomena (SCU) told The US Sun they are encouraging the disclosure of more information so scientists can help to investigate these unexplained occurrences.

Jonathan Lace, spokesman for SCU, explained the organization believes "most compelling" footage of the anomalous activity was taken by a Homeland Security aircraft over Puerto Rico on April 25, 2013.

The eerie footage shows an object believed to be up to five feet in length moving at speeds of up to 120mph close the ground before seemingly plunging into the ocean and splitting into two.

"No bird, no balloon, no aircraft and no known drones have that capability," the SCU noted in a 50-page report the team compiled on the incident.

SCU investigators said the object appears to be of "unknown origin" after spending 1000 hours researching the UAP.

To read more, click here.