Indonesia's rapid increase in COVID-19 cases has put the nation on the edge of a "catastrophe" as the more infectious Delta variant spreads. 

Indonesia has reported record daily COVID-19 infections of more than 20,000 in recent days, in a new wave of infections fuelled by the emergence of highly transmissible virus variants. 

Hospitals in several designated "red zone" areas have reported overcapacity, forcing many patients to be turned away with no medical attention.