TRISHULI, Nepal/BEIJING, Aug 26 (Reuters) - A huge wall of mud and rock collapsed into a river on the Himalayan border of Nepal and China's Tibet on Wednesday, triggering catastrophic flooding on the Nepali side that killed scores of people and left hundreds of tourists missing. Key points and original sources are listed below.

• TRISHULI, Nepal/BEIJING, Aug 26 (Reuters) - A huge wall of mud and rock collapsed into a river on the Himalayan border of Nepal and China's Tibet on Wednesday, triggering catastrophic flooding on the Nepali side that killed scores of people and left hundreds o...S1

• A huge wall of mud and rock collapsed into a river on the Himalayan border of Nepal and China’s Tibet on Wednesday, triggering catastrophic flooding on the Nepali side that killed scores of people and left hundreds of tourists missing. Related news: UP, Bihar...S2

• China's Xinhua News Agency said mudslides Wednesday caused by a glacial collapse in Tibet have left 558 people missing, while police in Nepal reported Thursday morning that at least 162 were killed after massive flash floods in a border area of Nepal and China...S3