There have been reports of small oil globules being present on several beaches in Uig and on the West Coast of Lewis, according to Comhairle nan Eilean this evening (Thursday June 1).
These have been seen around tide marks but may also be buried under a thin layer of sand.
The Comhairle says it has spoken to other agencies and will monitor the situation over the next few days following reports that the globules are breaking down naturally with the tides.
Contact with the oil globules may cause skin problems and swallowing the oil could cause serious health effects.
It is a sensible precaution for you, your children and your animals to avoid contact with any areas of the beach affected by the oil.
If you find globules of oil on the beach you can report to Stornoway Coastguard on 01851 702013.