Nearly 100 key rings mysteriously stopped working in the parking lot of a supermarket. An investigation is being carried out in order to understand this phenomenon.

This story caused a lot of speculation on social media. In the parking lot of a Tesco supermarket in Royston, England, nearly 100 car key chains stopped working simultaneously. The phenomenon was so significant that Ofcom, the communications regulator, visited the scene to investigate.

Police said on Facebook that the problem was intermittent, so there was no malicious intent behind the phenomenon. In the comments, speculation was rife: "I think this is an alien phenomenon," exclaims Samantha. "It's a full moon tonight," said Alison ironically.

There have also been more serious responses with people investigating the origin of this mystery. Some argue that the signal from a nearby gas station may be the cause, others think more of a defective antenna amplifier.

In the light of recent incidents, the company wants to know the feedback from the customers through the Tesco Views Survey. If you recently visited the store and have something to say about them then fill out the questionnaire and get ready for cash reward.