Fonseca, one of Port's leading producers, has suffered a landslide at Vila Nova de Gaia, which has destroyed up to 3% of the company's stock, including vintage, Late Bottled Vintage, Bin 27 and 10 and 20 year-old Tawny.

The landslide, which hit and destroyed two storage houses, left the company with a loss of over 1,000 pipes of Port. Adrian Bridge, managing director of Fonseca Guimaraens said: "We are greatly saddened by the loss of some of our prized Ports from Fonseca which included some Vintage, Late Bottled Vintage, Bin 27 and 10- and 20-Year-Old Tawny. In one sweep and without any warning, the vats were ripped apart releasing the contents."

He continued: "Although the region remains on high alert for more wind and rain, we are happy to report that we have stabilised the situation within our immediate location. The adjacent land is our main concern as it is still unstable but we are working closely with the local authorities to improve the situation.

"After an initial assessment, our loss is estimated to represent only around 3% of our total company stocks having rescued 450 pipes of exceptional quality Ports."