London, October 08 A video of a missile fired by Iran has amazingly captured a UFO flying across the sky, splitting a cloud in two.

The clip was originally intended to capture the controversial launch of the Shahab-3 rocket.

As the rocket soars into the sky, after almost 38 seconds a close cloud is surprisingly torn in two by a flying object travelling at speed.

Former UFO analyst for the Ministry of Defence Nick Pope believes that nothing man-made could rip through the cloud in that fashion.

"One theory is that it's a secret American drone. At any time there are prototype aircraft and drones being operated that won't be shown in public for years," the Sun quoted him as saying.

"Stealth aircraft flew for many years before their existence was acknowledged.

"But the speed and acceleration seems phenomenal. I'm not convinced we've got anything capable of such manoeuvres," he added. (ANI)