White supremacy constitutes a "trans-national" threat, the UN secretary general has warned.
Antonio Guterres also said racist groups had exploited the coronavirus pandemic to boost their support.
The danger was growing by the day, he told the UN Human Rights Council in Geneva on Monday.
He said: "White supremacy and neo-Nazi movements are more than domestic terror threats. They are becoming a transnational threat.
"Today, these extremist movements represent the number one internal security threat in several countries.
"Far too often, these hate groups are cheered on by people in positions of responsibility in ways that were considered unimaginable not long ago.
"We need global coordinated action to defeat this grave and growing danger."
White supremacy a global threat, says UN chief
‘These extremist movements represent the number one internal security threat in several countries,’ Antonio Guterres warns
www.independent.co.uk