Ethiopians rally in solidarity with Prime Minister Abiy Ahmed in Meskel Square in the capital, Addis Ababa, Ethiopia, on June 23. (AP)

ADDIS ABABA, Ethiopia, June 23, (Agencies): An explosion struck a huge rally for Ethiopia’s reformist new prime minister on Saturday shortly after he spoke and was waving to the cheering crowd that turned out to support sweeping changes in Africa’s second most populous nation.Addressing the country minutes after he was rushed to safety, Prime Minister Abiy Ahmed called the blast a “well-orchestrated attack” but one that failed. He did not lay blame but said police were investigating . Health Minister Amir Aman confirmed one death while Abiy’s chief of staff said 83 people were hurt, six critically. “The prime minster was the target,” a rally organizer, Seyoum Teshome, told The Associated Press. “An individual tried to hurl the grenade toward a stage where the prime minister was sitting but was held back by the crowd.” The man with the grenade was wearing a police uniform, witness Abraham Tilahun told the AP.Police officers nearby quickly restrained him, he said. “Then we heard the explosion.” AP video from the scene showed bloodstained ground and abandoned shoes while people chanting the prime minister’s name fl ed, some clutching their heads in shock and despair. The attack was “cheap and unacceptable,” Ethiopia’s prime minister said, and added: “Love always wins. Killing others is a defeat. To those who tried to divide us, I want to tell you that you have not succeeded.” The explosion in packed Meskel Square in the capital, Addis Ababa, came after weeks of reforms that had shocked many in the East African nation after years of anti-government tensions, states of emergency, thousands of arrests and long internet shutdowns.