On April 25, 2013, at about 9:20 pm local time, and unknown object at low altitude flew directly across the Raffael Hernandez airport runway at Aquadilla, Puerto Rico, causing a delayed departure of a commercial aircraft.
There was no squawking transponder signal to alert the aircraft tower, nor was there any communication with the tower to prevent a dangerous situation with departing or arriving aircraft.
Fortunately, an airborne U.S. Customs and Border Protection aircraft captured the object on infrared video. An original copy of a thermal video was obtained from an official source on October 20, of the same year.
There was no classified information found in the report. The 3-minute video detailed the flight of the unknown object that crossed twice into northwestern Puerto Rico from the Atlantic Ocean and returned into the ocean into which it submerged. Thanks to http://www.ufocasebook.com
SEE VIDEO HERE >> https://youtu.be/yOkrZoI4aBw
Google ……….KEN PFEIFER ALIEN CRAFT