Baffled shoppers whose key fobs mysteriously stopped working in a Tesco car park have jokingly blamed aliens.
North Herts Police received around 100 reports over the course of three days last week in relation to the unexplained phenomena in Royston.
Officers went down to the supermarket in Old North Road with reps from communications regulator Ofcom to conduct a survey, with an investigation ongoing.
The constabulary’s statement, posted on Facebook, said that the issue appears to be intermittent and is “not being treated as malicious intent”.
Customers have been warned not to panic if they can’t open their cars and instead to report it at the store’s customer service desk.
Commenters, however, took a more tongue-in-cheek approach, with some suggesting it could be due to extra terrestrial activity.
Samantha Elliott said: “I thought it was some kind of alien phenomena.
“My fob wouldn’t work – some lady couldn’t stop her alarm going off and there was at least three other car alarms going off.”
While Alison Punchard joked: “There is full moon tonight.”
There were also some more serious responses, with Karen Griffin Long questioning whether there is a petrol station nearby.
“Has anyone checked the signal for the pumps is it interfering with the key fobs?” she asked.
While Andre de Guerin added: “It’s highly likely that this is a faulty TV active booster aka aerial amplifier.”
The police statement, which was last updated on Saturday (February 27), went on to say: “Ofcom has not received any reports in relation to this since yesterday afternoon.
“An investigation is now underway, led by Ofcom with the support of police, and the manager of the Tesco store is also aware of the ongoing work.”
It added that any issues can be reported to the branch’s on-duty manager who has contacts details for the regulator.