A rockslide in Brazil killed six people and seriously injured nine; While 20 people are still missing.
Videos posted on social media showed tourists screaming as a huge block of rocks hit the water.
At least one boat sank in the crash; while other boats fled in search of escape; According to "Sky News Arabia".
Rescuers, including divers, said they were searching for 20 people believed to be missing.
The nine victims sustained broken bones, and one of them was taken in serious condition to hospital with injuries to the head and face. "About 23 others were treated for minor injuries," Fire Department spokesman Pedro Ihara told reporters.
The area has been experiencing heavy rains for the past two weeks, which may have led to the loosening of the rocks.