The 73-year-old woman felt faint at the store in Roubaix and went to the toilet. But when she came out later she found the shop deserted and locked up.
French media say she set off the alarm repeatedly and spent the night wandering the aisles, but nobody came.
A member of staff found her safe but exhausted on Tuesday morning.
The local newspaper La Voix du Nord says the woman was taken to hospital for a health check. She had tried unsuccessfully to get some sleep in the Intermarche supermarket’s staff office, and had not helped herself to any New Year treats from the shelves.
Roubaix is near Lille and the Belgian border.
President Joe Biden has urged pro-Palestinian protesters on university campuses to uphold the rule of…
Blue Ivy Carter has joined the voice cast of The Lion King prequel Mufasa: The…
At least five people, including a four-month-old baby, have been killed after dozens of tornadoes…
Harvey Weinstein has been hospitalized just days after his 2020 rape conviction in New York…
Hamas has published a video showing the first proof of life of US and Israeli…
Prosecutors and Donald Trump’s attorneys delivered opening statements and the first witness was called on…