UFO experts are investigating this footage of a strange object which appeared in Texas.

The eyewitness who shot the footage says it appeared to change shape over a period of around four minutes.

The object was spotted in Houston at around 3.15pm on November 23rd.

The mutual UFO network ( MUFON ) says it is now looking into an explanation.

“I noticed the reflection of light in the sky,” the witness said.

“It was stationary, and appeared to change shape.”

A short time later, the object appeared to move.

Most UFO sightings can be explained as something natural or man-made.