Redwan Hussien Rameto, second left, representative of the Ethiopian government, and Getachew Reda, second right, representative of the Tigray People's Liberation Front, sign a peace agreement regarding the African Union-led negotiations to resolve conflict in Ethiopia at the Department of International Relations and Co-operation offices in Pretoria, South Africa. AFP

Antony Blinken calls Ethiopia and Tigray ceasefire a 'momentous step' towards peace