The main drivers of displacement remain large conflicts like Sudan, Myanmar and Ukraine, and the continued failure to stop the fighting.
Without naming countries, he said initiatives to outsource, externalise or even suspend asylum schemes were in breach of international law.
If implemented, it would pave the way for asylum seekers, including families with children, to be summarily sent to Rwanda, with no prospect of return to the UK.
Recent assessments reveal that two out of three Sudanese lack access to healthcare.
The UN Refugee Agency warned on Friday that aid was slowing down.
On Wednesday, the UN official criticised attempts by governments to keep refugees out.
“We must look within, work together to end conflicts.’’
As of June, the number of forcibly displaced individuals worldwide stood at 110 million, marking an increase of 1.6 million from the end of 2022.
More than one in every 74 people is now displaced.
The UN Refugee Agency (UNHCR) has counted 100 million people worldwide who have been forced to flee their homes.
