They were among a number of others who were swimming in the waterfalls when a heavy storm uprooted some trees, which fell on them during a downpour.
Boateng added that they had to use chainsaws and other cutting tools hack through the branches to free the victims.
The deceased are believed to be mostly students from the Wenchi Methodist Secondary School who were on an excursion to the famous waterfall at the time of the incident.
Sources from the Ghana National Fire Service said 18 bodies had been recovered and an additional 30 people were transferred to nearby hospitals with injuries.
Ghana's president has offered his condolences to the families of victims of a freak accident at a popular waterfall, in which a tree fell and killed at least 18 people.
The First Lady Rebecca Akufo-Addo has said no amount of words can assuage the pain of the bereaved family in the Kintampo Waterfalls fatalities over the weekend.
Desmond Owusu Boampong, the commander and the chief superintendent of the Kintampo Divisional Police Commander, confirmed the death toll to Ghana Starr News.
It is reported numerous injured were taken to Kintampo Municipal hospital.
Addressing the press, Dr. Bawumia described the accident as a major loss not only for the Brong Ahafo Region but for all of Ghana.