Severe smog has affected visibility in northern China, resulting in at least 40 flights from Harbin Taiping International Airport being cancelled or postponed.
The density of the particulate matter used as an indicator of air quality was more than 24 times higher than the level considered safe by the World Health Organisation.
Flight statuses can be checked below:
Lufthansa
Air France/KLM
Virgin Atlantic
Qatar Airways
British Airways
SAA
Emirates
Singapore Airlines
Thai Airways
eTNW will be monitoring and updating the story.