Torrential rains have triggered floods and landslides across parts of southern Asia, killing about 700 people. Monsoon rain exacerbated by tropical storms caused some of the region's worst flooding in years, with millions affected in Indonesia, Malaysia, Thailand, and Sri Lanka. Intense rainfall began on the Indonesian island of Sumatra on Wednesday. During the flood, everything was gone, a resident of Bireuen in Sumatra's Aceh province told Reuters news agency. I wanted to save my clothes, but my house came down. With hundreds still missing, the death toll is likely to rise. Thousands remain stranded, some awaiting rescue on rooftops. As of Saturday, more than 300 people had died in Indonesia, 160 in Thailand, and at least two in Malaysia. In Sri Lanka, which has been battered by heavy rains and a cyclone, more than 130 people are dead and some 170 missing, officials said. Indonesia's disaster agency reported nearly 300 missing after floods devastated Sumatra due to Cyclone Senyar which caused catastrophic landslides, with homes swept away. Rescue operations have been hindered by bad weather, affecting tens of thousands in shelters. In Thailand, specifically Songkhla province, water levels rose three meters (10 ft), claiming at least 145 lives. The government reports that over 3.8 million people have been affected across the country. In addition, Sri Lanka faces a humanitarian crisis with a declaration of a state of emergency and ongoing appeals for international aid. Meanwhile, climate experts indicate that the extreme weather patterns could be influenced by climate change, which has intensified storm systems across Southeast Asia.