Personnel of the Ghana National Fire Service and the police service are now at the scene to rescue those trapped under the fallen tree.
Twenty people have reportedly died after a tree fell down at Kintampo Falls in Ghana.
"They were swimming in the river when there was a storm, a windy atmosphere that uprooted some of the trees and they fell on some of them - those who were apparently swimming".
The broadcaster said rescue teams used chainsaws to cut through the fallen tree and free those trapped underneath.
Kintampo Falls is a tourist site popular among domestic and worldwide tourists who throng to the area in the thousands every week.
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It is estimated that at least 20 are dead and another 11 critically injured from the freak accident; most were students from a high school and university. Reports said many of them were students.
The tree crushed students who were swimming in a pool at the base of the waterfall, local police chief Owusu Boampong told the BBC.
Ghanaian officials have offered their support to victims following the incident.
Following up with a second post, he added: "My deepest condolences to the families of all those affected by this unfortunate and tragic incident".
Ghana's tourism minister Catherine Abelema Afeku has extended condolences to the families of the victims and prayed for the injured, Sky News reported.