Fire crews are tackling a large blaze at the Grangemouth petrochemical complex.
The fire started just before 11am on Thursday, sending up a column of black smoke which was visible from Bo'ness.
Emergency services have said no-one was hurt in the incident and there is no risk to the public.
Most of the fire is understood to have been extinguished by around 12.30pm.
The fire service said: "We are currently in attendance within the grounds of the Ineos site at the Grangemouth Petrochemical complex.
"Operations Control mobilised three fire appliances to North Shore Road and crews are presently working with on-scene response crews to extinguish the fire."
Police said the fire was isolated to the docks.
Chief Inspector Chris Stewart said: "Officers were called to Grangemouth at 10.47am on Thursday, 16 January, 2020, following a report of a fire at a petrochemical plant.
"There are no reported injuries and we are working with the fire service and experts on-site to ensure public safety.
"There is not thought to be any risk to local residents at this time and the fire remains isolated to the dock area."
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