Resident in Grangemouth are being told to prepare for 12 hours of mass flaring at INEOS as the refinery starts "recommissioning work" at one of its units.
Bosses at the petrochemical plant say that there will be periods of "controlled elevated flaring" and have apologised to locals in advance.
According to a statement on the site's social media channels, it is part of the normal start-up process.
