Cities across China are imposing tougher restrictions to try to control new outbreaks of Covid-19.

Tianjin city is battling the highly contagious Omicron variant which has been detected to have been transmitted locally in two other provinces.

A Tianjin official told a press briefing today that 49 domestically transmitted cases with confirmed symptoms have been detected during the latest outbreak.

The city of 14 million people, around 100km from Beijing, is now implementing...