People living in one town claim they have been plagued with a "strong" and "horrible" smell.
Those living in Skelmersdale said on social media the stench was "so strong" and claimed it smelt like gas "all day" on Tuesday and into today. Posting on a local Facebook group one said the smell was around the Sandy Lane area in the town.
Other people also said they had also smelt it too. One person said: "I smelt that before was awful." Another added: "We passed White Moss at 6.30pm whilst on m58 it was bad... returned at 11.30pm, still awful. I feel so sorry for residents living closer. I will report it now"