Zimbabwe's President Robert Mugabe signed a power-sharing agreement with opposition rival Morgan Tsvangirai on Monday, relinquishing some of his powers for the first time in nearly three decades of iron rule, Reuters reported. The deal followed weeks of tense negotiations to end a deep political crisis compounded by the veteran leader's disputed and unopposed re-election in a widely condemned vote in June. Under the agreement, Tsvangirai will become prime minister. "This agreement sees the return of hope to all our lives. It is this hope that provides the foundation of this agreement that we sign today, that will provide us with the belief that we can achieve a new Zimbabwe," Tsvangirai said after the signing ceremony. Zimbabweans hope the agreement will be a first step in helping to rescue the once prosperous nation from economic collapse. Inflation has rocketed to over 11 million percent and millions have fled to neighbouring southern African countries. Cheers greeted the signing of the deal at a Harare hotel by Mugabe, Movement for Democratic Change (MDC) leader Tsvangirai and Arthur Mutambara, who leads a breakaway faction of the MDC, the main opposition party. The three smiling Zimbabwean leaders exchanged copies of the agreement and shook hands in front of South African President Thabo Mbeki, who brokered the deal, and other African leaders.