A full investigation has been launched into flaring at a Fife chemical plant after scores of complaints.
The Scottish Environment Protection Agency (Sepa) has branded last week’s episode at the Mossmorran complex “a prolonged and unsatisfactory situation” and pledged to consider if any further controls should be imposed on operators Shell and ExxonMobil.
It will also look into whether enforcement action is necessary in the wake of the incident.
People living near the Fife Ethylene Plant were alarmed to see thick, black smoke belching from its chimney on Sunday, following several days of flaring which lit up the sky for miles around.
Loud vibrations also caused houses to shake.
ExxonMobil has apologised for the incidents and said it would co-operate fully with Sepa’s investigations.