International leaders at the G7 summit have agreed to provide logistical and financial support to help fight fires in the Amazon rainforest.
French President Emmanuel Macron said G7 countries would release $22m (£18m).
However, President Jair Bolsonaro said Mr Macron's plan of an "alliance" to "save" the Amazon treated Brazil "as if we were a colony or no man's land".
A record number of fires are burning in Brazil, mostly in the Amazon, according to the country's space research agency.
The funding pledge was announced as the leaders of the G7 - Canada, France, Germany, Italy, Japan, the UK and the US - continue to meet in Biarritz, France.
Mr Macron said the funds would be made available "immediately" - primarily to pay for more fire-fighting planes - and that France would also "offer concrete support with military in the region within the next few hours".
However, Mr Bolsonaro - who has been engaged in a public row with Mr Macron in recent weeks - accused the French leader of launching "unreasonable and gratuitous attacks against the Amazon region", and "hiding his intentions behind the idea of an 'alliance' of G7 countries".
He wrote on Twitter that Brazil's sovereignty should be respected - and said he had discussed with Colombia's president the need for "a joint plan" from the countries that actually made up the Amazon region.
Despite Mr Bolsonaro's comments, his environment minister, Ricardo Salles, told reporters that the funding was welcome.
Reuters news agency reports.