Police forces have been responding to calls from concerned residents after they smelt a foul-smelling gas in the south east.
A Kent Fire and Rescue Service spokesman said: "South Kent residents are being asked to keep doors and windows closed due to a gas cloud that is believed to have come across from France, following reports of a gas leak from a factory 75 miles west of Paris."
Meanwhile, Metropolitan Police tweeted that the gas did not pose a risk to the public:
We are aware of reports of a strong noxious gas like smell in some South East London boroughs - no risks to public
More top news
A sister who donated her late brother's face to a man who suffered a life-threatening, disfiguring injury has met him for the first time.
After a wet start for many, a frontal system continues to clear eastwards leaving showers across the UK
Further doubt was cast on David Cameron's credentials as a football fan after he suggested a Britain team takes part in internationals