Officials said 28 firefighters were in a cave in São Paulo when it collapsed.
Nine Brazilian firefighters were killed in a cave collapse during a training exercise on Sunday, officials said.
The Sao Paulo Military Firemen Department confirmed to ABC News that 28 firefighters were training in a cave on the Gruta Duas Bocas trail near Altinópolis in São Paulo, Brazil, when the roof of the cave collapsed.
An emergency response was launched at 11:30 local time on Sunday, the department said.
Nine of the firefighters died and several were injured. One is still hospitalized with non-life-threatening injuries.
The rescue operation has been completed and there are no more victims, the department informs.