Hong Kong police have arrested 127 people in a crackdown on a Vietnamese-led syndicate suspected of loan sharking, illegal gambling, unlicensed bars, and providing accommodation and jobs to illegal immigrants.

Long-term residents of Villa Las Estrellas, a Chilean settlement on Antarctica's King George Island, must have their appendix removed before moving in because the nearest major hospital is more than 1,000 km away.

A Vietnamese high school student and his friends have developed an AI system that can decipher doctors' handwriting and digitize medical records, with Amazon providing US$35,000 to support its further development.

A high tide on Saturday afternoon left many Ho Chi Minh City streets deep under water, stalling vehicles and making it hard for residents to get around.

Hundreds of cancer patients arrive before dawn at Ho Chi Minh City Oncology Hospital each day, but many must wait four to six weeks to begin radiotherapy as its machines operate at full capacity.