Smog-hit Beijing slapped with top 'fog' alert for second day

The Chinese capital issued its highest red fog alert for a second day on Wednesday, keeping highways closed in and around the city which is already under a smog alert after weeks of choking winter pollution. China's weather bureau warned of visibility of less than 50 metres in some areas, leading many airports to cancel flights. More than 2,000 tourists were stranded on a cruise ship for two extra days near the port of Tianjin, as smog prevented the ship from docking until Monday, the Beijing Ev