Southern Brazil floods: 78 dead, 88,000 displaced as rescue efforts intensify

Authorities in southern Brazil scrambled Sunday to rescue people from raging floods and mudslides that have killed at least 78 and forced more than 88,000 to flee their homes.

All over Porto Alegre, the capital of Rio Grande do Sul state, people stood on rooftops hoping to be rescued as others in canoes or small boats navigated streets that have become rivers.