Amazon fires: Bolsonaro says Brazil cannot fight them

And he again suggested that non-governmental organisations had started fires in the rainforest, but admitted he had no evidence for this claim.

He added that his government was investigating the fires.

Earlier, Brazil's Environment Minister Ricardo Salles was heckled at a meeting on climate change.

Conservationists have blamed Brazil's government for the Amazon's plight.

They say Mr Bolsonaro has encouraged the clearing of land by loggers and farmers, thereby speeding up the deforestation of the rainforest.