In what has come as a disappointment to Indian travellers, Hong Kong has implemented a ban on Air India flights from New Delhi once again. This is the fifth ban that the national carrier has received from Hong Kong. The ban will be effective from November 20 to December 3. The move came after several passengers on Air India flights to Hong Kong were tested COVID-positive on their arrival in the country. Over the last few days, the number of coronavirus cases has been on a surge in India.