Although a barrier lake that had formed after the disaster has drained naturally, Su said unstable deposits and slopes remain, creating risks of localized blockages, landslides and debris. Satellite and aerial remote sensing, radar, hydrological monitoring and real-time drone imagery are being used to support continuous risk assessment and provide warnings to rescuers downstream.

　　Su said climate change is increasing the risks of disasters in the Himalayas, calling for early glacier-risk assessment, an integrated satellite, aerial and ground monitoring system and stronger cross-border cooperation on data sharing, risk assessment and early warning.

　　Foreign journalists visiting the site also noted the difficulty of reaching the remote area. Muhammad Asghar, a correspondent for the Associated Press of Pakistan in China, said the rescue response had been "very quick" despite the challenging access.

　　Bruno Falci, a Brazilian journalist with Latin American television channel teleSUR, said it was "really impressive how fast China acts", citing the rapid mobilization of rescuers and reopening of roads.

　　The State Council Information Office and the Ministry of Foreign Affairs organized a visit to the disaster area on Saturday and Sunday for 17 journalists from nine overseas media outlets, including those from the United States, Britain, Russia, India and Singapore.

　　Contact the writers at yangzekun@chinadaily.com.cn