Among the tourists, most of whom are from European countries, are 12 Croatians who were admitted to the “Danilo I” hospital in Cetinje.
The public RTCG broadcaster said on Sunday that their condition is good and that they should be released later in the day.
Inspection Directorate head Ana Vujošević said that this was the eighth time in the past few months that the Loza Hotel was being closed, noting that the hotel had reopened illegally on the previous seven occasions, which qualifies as a criminal offence.
The Montenegrin Public Health Institute said earlier that samples had been taken in all hotel areas to determine the cause of poisoning.
Most of the guests staying at the hotel have been transferred to other hotels in Budva, with the Montenegrin Ministry of Economy and Tourism covering the cost of their stay there.
Local officials late on Saturday night confirmed that around 100 tourists, most of whom were from Poland, Slovakia, Slovenia, and Croatia, had sought medical assistance in hospitals in Kotor, Bar, and Cetinje due to gastrointestinal problems.
Health Minister Dragoslav Šćekić said in a Twitter post that Montenegrin health institutions had promptly provided the patients with the necessary medical care.