The death toll from floods and landslides on Indonesia’s Sumatra island rose sharply to 708 on Tuesday, with 504 people missing, the country’s disaster agency reported. This is a jump from 604 deaths reported just a day earlier. Heavy monsoon rains combined with tropical cyclones have devastated parts of Asia this week, including Indonesia, Sri Lanka, and southern Thailand. More than 1,300 people have died across the region. In Indonesia alone, about 3.2 million people have been affected and 2,600 injured. One million people have been evacuated from high-risk zones. Earlier reports of 753 deaths were revised down to 708. Rescue and aid teams face huge challenges due to blocked roads and broken bridges. Areas like Tapanuli Tengah in North Sumatra and Agam in Aceh remain cut off. In Aceh, markets are running low on rice, vegetables, and essentials, with prices tripling. Islamic Relief is sending 12 tonnes of emergency food aid, warning of severe hunger risks if supplies don't arrive soon. The Indonesian government is delivering 34,000 tonnes of rice and 6.8 million litres of cooking oil to Aceh, North Sumatra, and West Sumatra. The World Health Organization is deploying rapid response teams, supplies, and enhancing disease surveillance. WHO Director-General Tedros Adhanom Ghebreyesus said, "It was another reminder of how climate change is driving more frequent and more extreme weather events, with disastrous effects." Survivors described the floodwaters rushing in suddenly and without warning. Gahitsa Zahira Cahyani, 17, said, "We didn’t think we would survive that night because the situation was so chaotic. Everyone was thinking about saving themselves." Hundreds of students at her Islamic boarding school fled at night, clutching trees and rooftops. This year’s monsoons, worsened by a rare tropical storm in the Malacca Strait, caused destruction in Sumatra and southern Thailand, where 181 people died. Sri Lanka also suffered massive flooding and landslides from Cyclone Ditwah, with 410 dead and 336 missing. President Anura Kumara Dissanayake declared a state of emergency, calling it "the most challenging natural disaster in our history." Though rains have eased in Sri Lanka, landslide alerts remain active in central areas. Agence France-Presse contributed to this report.