Two passengers who were travelling on the ship were taken off for testing in Marseille.
The AIDAsol cruise ship is able to carry more than 2,100 passengers.
An AIDA Cruises spokesman told Express.co.uk yesterday: “The call of AIDAsol at the port of Marseille is delayed today, March 10, 2020, because the local authorities are investigating a case.
“For AIDA Cruises, the safety, health and well-being of our guests and crew have top priority at all times.
“We work closely with the responsible authorities and provide information immediately.”