"The first patient is dead," a spokesman with the Directorate General for Health said, referring to the man who was hospitalised on April 23.
Another man, who shared a hospital room with him for three days, was later found to have the nCoV-EMC virus, which is a cousin of the Severe Acute Respiratory Syndrome (SARS) that sparked a health scare around the world in 2003.
The other man, who is in his 50s, has been in hospital in the northern city of Lille since May 9.
There have been 44 laboratory confirmed cases worldwide of the virus, which until now has been known as the novel coronavirus, or nCoV-EMC, but was redubbed the Middle East Respiratory Syndrome Coronavirus, or MERS.
Saudi Arabia counts by far the most cases, with 30 confirmed infections and 17 fatalities, while cases have also been detected in Jordan, Qatar, Tunisia, the United Arab Emirates, Germany, Britain and France.
