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9:30 a.m.

Pope Francis is out and about on the popemobile heading to his first public event of the day in Bolivia, an open-air Mass in Santa Cruz's Christ the Redeemer square.

Francis' bodyguards jogged alongside his popemobile at a fast clip as the pope waved to the crowds. His motorcade route was lined by flag-waving Bolivians held back by a human chain of police.

After the Mass, Francis' main event of the day is a keynote speech to a summit of grass-roots groups whose advocacy for the poor and marginalized has been championed by history's first Latin American pope.

Overnight, several thousand slept in square to get a spot close to the front.

Francis arrived in the Andean nation late Wednesday after three days in Ecuador.