Nov. 30 (UPI) -- Rescue workers in Indonesia are searching for at least 400 people who are believed to have been buried alive following landslides caused by torrential rains and flooding from cyclones nearly a week ago. The death toll on the island of Sumatra is at least 440 people , the government has reported. Workers are attempting to deliver aid into the affected areas by land and sea, but have been unable to reach some locations, which has prompted some people to steal food and water,