The ministry said that more details would be provided later in the day.
According to the World Health Organization (WHO), more than 18,000 monkeypox cases have been detected throughout the world outside Africa since the beginning of May, most of them in Europe.
The Health Ministry reported in July that Lithuania had ordered approximately 1,400 monkeypox vaccine doses.
The ministry then said that jabs would be administered to case contacts after a high-risk exposure and there would be no possibilities for preventive vaccination.
Vaccination against pox in Lithuania was stopped in approximately 1980.