UFO experts in England Thursday called for a probe into this summer’s "Little Green Man" sightings — as one was spotted above a TESCO supermarket.

The white and green lights were snapped hovering over the supermarket — which has the slogan "Every Little Helps."

Sid O’Driscoll took the pictures at the 24-hour store in Croydon, South London, at 2 a.m.

"It was very weird. It was the most beautiful green and white light, moving quite fast, then stopping," Musician Sid, 35, said.

"It had to be mechanical, like a spaceship, because it slowed down and stopped. It wasn’t making any noise. It disappeared in a flash. I went home and told my girlfriend. She didn’t believe me, but the pictures speak for themselves."

Sid added: "I don’t touch drugs. I’m not a believer in UFOs but I’ve got no idea what this was."

UFO expert Nick Pope, who worked for the Ministry of Defense, examined the pictures.

He said: "Green lights are unusual — it rules out the so-called Chinese lanterns that accounted for some recent UFO sightings in the U.K.

The images and description of the movement don't fit a list of things frequently reported as UFOs — aircraft lights, meteors, satellites.

"This is a genuine mystery."

Click here to read more on this story and to view the photos from The Sun.