Salvage experts were today attempting to remove 180 tonnes of oil from a cargo vessel which ran aground on rocks.
A tug is expected to remove the hazardous cargo, which has not yet leaked into the waters near the Island of Mull off the west coast of Scotland.
The rescue craft will also attempt to refloat the 3,718 tonne Lys Foss, which was en route from Sweden to Belfast when it grounded just after 5.30am yesterday.
The eight man crew were taken off the vessel last night after assisting with the salvage operation on the Swedish-registered vessel.
No one was hurt in the incident, which caused most damage to the hull when the vessel hit the rocks.
Tobermory Lifeboat later placed a boom around the vessel to contain any leakage of diesel, which has caused a light sheen in the water.
A spokesman for Clyde Coastguard, who coordinated the operation, said: ‘‘The only actual pollution is a slight seepage of diesel fuel and we will try to contain it as much as possible.
‘‘A tug will attend the site today and take the fuel off the ship and look at the prospect of refloating it.
He said the environmental impact was ‘‘minimal at the moment’’.
Speaking last night John Garner, head of operations at the Maritime and Coastguard Agency (MCA), said: ‘‘The remainder of diesel oil in the ruptured tank has been transferred within the vessel and the integrity of the tanks containing the fuel oil is being assessed.’’
Mr Garner said there were 30 tonnes of diesel oil and 180 tonnes of intermediate fuel oil on board, although early assessments have suggested that the vessel will not break in two.
The tug will be sailing from Humber in Yorkshire and is due to arrive at the scene later today.