By Nicoco Chan and Tingshu Wang GYIRONG, China, Sept 6 (Reuters) - About 20 Chinese rescue workers in bright orange worked excavators, shovels and radar detectors on Sunday in an effort to find hundreds of people missing since a tsunami-like mudslide wiped out China’s main border crossing with Nepal.

An additional 4,216 people were believed to still be missing, officials said.

More than 10% of Nepal's energy generation capacity was knocked out by last week's floods.

A group of the country's private sector power producers says Nepali authorities lost crucial time in rescuing hundreds of people trapped in hydropower tunnels

Nepal has introduced safety and operational rules for journalists covering flood-hit areas, while foreign reporters must obtain press accreditation and a journalist identity card to report from affected zones.

The recent deadly flash floods in Nepal have damaged 12 hydropower projects, dealing a significant blow to the country’s energy infrastructure and other critical sectors, including banking and insurance.

India Today visited Bidur in Nuwakot, one of the districts worst affected by the floods in Nepal. What once was a bustling city now lay washed away, leaving behind an eerie, ghost-town-like landscape.

A former UC Davis dean and his wife, an associate professor at the university, are among thousands of people still missing after flash floods swept through a mountainous region of Nepal.