An earthquake-spawned tsunami swept away buildings and killed at least several hundred people on the central Indonesian island of Sulawesi, dumping victims across a devastated landscape that rescuers were struggling to reach Saturday, hindered by damaged roads and broken communications. The toll from an earthquake and tsunami in Indonesia soared on Sunday to 832 confirmed dead, with authorities fearing it will only climb as rescuers struggle to reach outlying communities cut off from communications and help.