Barack Obama was elected the 44th president of the United States, defeating Republican senator John McCain and becoming the first Black American to win the presidency.

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Mr Obama built a decisive electoral college majority by winning states that had voted Republican in previous cycles, including Virginia, Indiana and North Carolina, on the strength of an unusually large and well-funded field operation. He addressed a crowd of more than 200,000 people in Chicago's Grant Park, telling them that change had come to America.

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The result arrived amid the worst financial crisis in generations, and the president-elect immediately faced pressure to name an economic team. Governments across Africa, Europe and Asia sent congratulations within hours, with celebrations reported in Kenya, where his father was born.