Enrique Pena Nieto
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Enrique Pena Nieto inaugurated as Mexico's president

2 December 2012 Last updated at 03:00 GMT

Enrique Pena Nieto has been sworn in as Mexico's new president, promising to boost economic growth and tackle drug-related violence.

Security was tight in Mexico City for the inauguration after petrol bomb-wielding protesters clashed with riot police, who fired tear gas.

The demonstrators are angry at what they say was vote-buying by the president's campaign, and against the return to power of Mr Pena Nieto's Institutional Revolutionary Party (PRI) after a 12-year absence.

Will Grant reports.