Brazil's President Jair Bolsonaro

Brazil's Bolsonaro says DiCaprio gave cash 'to set Amazon on fire'

The president gave no evidence but in the past has accused NGOs critical of his policies of starting fires that ravaged the rainforest this year.

Several arrests have been made amid controversial and unproven allegations fires were started to obtain funding.

DiCaprio, who has pledged $5m for the Amazon, denied Mr Bolsonaro's claim.

The latest comments appear to arise from the arrest of four volunteer firefighters from northern ParĂ¡ state on allegations they started fires to generate NGO donations.