The Hong Kong protests escalated in June over a now-withdrawn extradition bill, but have since developed into a broader movement.

"Due to a decrease in demand for the Hong Kong market and the resulting decrease in unit revenue, the company determined that the value of its Hong Kong routes had been fully impaired," the U.S. carrier said. (https://bit.ly/36xQCef)

Several airlines including India's SpiceJet Ltd, Malaysia's AirAsia Group Bhd, South Korea's JejuAir Co Ltd reduced the number of flights to the city in the fourth
quarter as the protests grew increasingly violent, disrupting daily life. (https://reut.rs/2QUFgKz)

(Reporting by Ankit Ajmera in Bengaluru; Editing by Shounak Dasgupta)