Gunmen kill 20 at S. Sudan UN base: US envoy

South Sudan: Gunmen killed at least 20 people and wounded 70 others when they stormed a UN base in South Sudan Thursday, the US envoy to the world body said.

Ambassador Samantha Power strongly condemned the "brazen, inhuman attack on unarmed civilians." The United Nations had previously said dozens of civilians from a rival tribe had been wounded in the "unprovoked" attack before peacekeepers fought them off.

-AFP