Brazil's rescue efforts in flooded south after heavy rains

On Sunday, authorities in southern Brazil scrambled to rescue people from raging floods and mudslides in what has become the region's largest ever climate catastrophe, with at least 78 dead and 115,000 forced from their homes.

More than 3,000 soldiers, firefighters and other rescuers were trying to reach residents, who were in many cases trapped without basic supplies such as running water or electricity.Civil defense officials said at least 105 people were missing. Besides Porto Alegre, another 341 towns and villages have been hit by the flooding.