South Africa said Monday that four more people have tested positive for the novel coronavirus, bringing the total number of cases in the country to seven.

Health Minister Zweli Mkhize said at a briefing that the seven cases were among a group of 10 South Africans who went on a skiing trip to Italy on March 1 and returned on March 3

All members of the group are currently in quarantine, according to health officials.

South Africa’s first case of the novel coronavirus, officially known as COVID-19, was a 38-year-old man from the group who returned from the trip

Read more: South Africa confirms four more cases of COVID-19