flammable

However, experts have warned that clearing brush is not the same as large-scale logging or thinning, which some say can make the landscape more flammable.

They also assist with prescribed burns, which reduce flammable vegetation and prevent bigger fires, but the burns can only move forward if there’s a certain number of staff available to contain them.

The reports also state that none of the vessels they looked at were fitted with flame arresters – safety devices designed to stop flames from igniting flammable gases.

Exterior walls, built from Douglas fir, were freshly oiled and flammable.

"In retaliation, communities across Upper Nile are being subjected to persistent aerial bombardment using devices, barrel bombs, allegedly containing a highly flammable liquid that acts as an accelerant on explosion," Mr Haysom said.