Hundreds of flights have been cancelled and trains suspended as gales hit Beijing and northern China on Saturday.

By 11:30 local time (03:30 GMT) on Saturday, 838 flights had been cancelled at the capital's two major airports, according to the news agency Reuters.

Beijing declared its first orange-level wind warning in a decade as a Mongolian cold vortex triggered extreme gusts (levels 11-13), toppling 300 trees, damaging vehicles, and disrupting airport express subways and high-speed rail, Reuters reported.

The strong winds are from a cold vortex system over Mongolia and are expected to last through the weekend.