A tower of rocks suddenly broke away from the canyon
wall and came crashing down on several leisure boats, sending out a huge wave
over the lake at Capitolio, in Minas Gerais state.
Videos posted on social media showed tourists shouting
as the column of rock crashed into the water, smashing two boats.
Authorities said three people were still missing after
others feared lost were located by telephone. Divers searched the lake.
The people hurt in the accident had broken bones and
one was in serious condition in hospital with head and facial injuries. Some 23
others were treated for light injuries, he said.
The region has been under heavy rainfall for two
weeks, which could have loosened the rock face. On Saturday, a dike overflowed
at an iron ore mine 300 kilometres to the east, cutting off a major federal