Contractors from Italy who turned up at a plastics factory in Blaenau Ffestiniog were "immediately" told to leave the site due to concerns over the spread of the coronavirus.

A worker said the Italians, reportedly from "hot-zone" areas of the Mediterranean country, arrived at the Rehau factory on Tuesday and were immediately ordered off the site.

Italy is the hardest hit location in Europe with more than 400 cases, North Wales Live reports.

The worst-affected areas are in the industrial north of the country, including Lombardy, the region around Milan, and Veneto near Venice.

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Several European countries have announced new cases traced to Italy.

The worker, who asked not to be named, said bosses acted swiftly to remove the contractors.

He said: "I'm not sure where they are now. They were last seen heading towards Maentwrog."

Operations are continuing as normal at the factory.

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A spokesperson from REHAU said: “Our manufacturing facility in Blaenau was visited by two third-party engineers from northern Italy, who were advised to leave the site immediately and self-isolate as a precaution.”

Globally, Covid-19, the respiratory disease caused by the virus, has killed more than 2,700 people so far.

The total number of confirmed cases in the UK is now 16.

German firm Rehau, which produces PVC-U window and door systems, has been in the town since 1979. It is one of the area's biggest employers with over 150 employees.