"Our house is burning," he tweeted.

Brazil's President Jair Bolsonaro responded by accusing Mr Macron of using the issue for "political gain".

He said calls to discuss the fires at the G7 summit in Biarritz, which Brazil is not participating in, evoke "a misplaced colonialist mindset".

The largest rainforest in the world, the Amazon is a vital carbon store that slows down the pace of global warming.