American oil company Chevron has sent home more than 300 workers after concerns that an employee may have coronavirus.
The patient reported flu-like symptoms upon returning from a country dealing with an outbreak of the virus.
Results from the test have not yet been determined.
In the meantime, staff have been instructed to work from home.
WATCH: Confirmed cases of coronavirus around the world
In a statement, a company spokesperson said: “Chevron continues to monitor the situation very closely, utilising the guidance of international and local health authorities.
"Our primary concern is the health and safety of our employees and we are taking precautionary measures to reduce their risk of exposure.
"Consequently we have requested that our colleagues, based at our Westferry Circus office in London, work from home for the time being."
Fears are intensifying over the spread of coronavirus in Europe as France reported its second death and the number of people in Italy with the virus continues to climb.
Authorities in Italy have reported that the number of people infected in the country grew to 322, or up 45% in 24 hours.
The country has now confirmed 11 people have died as a result of the virus.
Austria, Croatia and Switzerland also reported their first cases linked to the outbreak in Italy, while Spain and France recorded new ones, also involving people who had been to northern Italy.
Thirteen people have been diagnosed with the virus in the UK.
