VOV.VN - Air pollution intensified and spread across northern Vietnam on January 9, with Hanoi, Hung Yen, Hai Phong and Thai Nguyen recording poor to very poor air quality levels, according to official monitoring data.
VOV.VN - As many as 21 flights both from and to Hanoi's Noi Bai International Airport between 9 p.m. and 10 p.m. on August 23 had to either be diverted, delayed, or canceled due to unfavourable weather conditions.