https://motherboard.vice.com/en_us/article/9k8kaz/the-pentagon-released-new-documents-about-the-tic-tac-ufo

Last December, the New York Times published an expose on a secretive Defense Department program that had been investigating reports of unidentified flying objects—UFOs—for nearly a decade. Among the reports analyzed by the Advanced Aerospace Threat Identification program was a video that had been released a few months earlier that depicted a white, oval object that was chased by two F/A-18F fighter jets off the coast of California in 2004. The object, which has since become known as the “Tic Tac UFO” in alien hunting circles, was moving at high speeds and had no apparent means of propulsion.

"It takes off like nothing I've ever seen,” retired Navy pilot David Fravor, who was flying one of the fighter jets that day, told the New York Times. “One minute it's here, and off it's gone.”