Indonesian ambassador warns Australia Aukus pact must not fuel a hypersonic arms race

But Pramono raised broader concerns about more recent plans by Australia, the US and the UK to cooperate on weapons that can travel at least five times the speed of sound.

That prompted the announcement in April that the Aukus countries would expand their technology-sharing plans to cover both hypersonic weapons and defensive technology to counter such weapons.

This work has continued under the Albanese government, which has urged China to be transparent about its own rapid military buildup.

The proposal was significant, he said, because it would be the first time a nuclear weapons state had transferred naval nuclear propulsion material and technology to a non-nuclear weapons country for military purposes.

Pramono said the contribution to the global economy of developing countries in Asia had increased substantially over the past 20 years, while the G7 share had declined.