'You can't enforce this!' Susanna Reid hits out at Sadiq's mask crackdown on London Tube

Speaking about the restrictions, Khan explained: “I am quite clear in relation to public safety and also public reassurance.

“I think it’s important for us to continue for us to make it a requirement to wear a face mask on our services.

“What we’re going to do is because we haven’t got the national legislation behind us.

“We’re going to make a condition of carriage. So, if you want to use our services, one of the conditions is unless you’re exempt or you’ve got a very good reason, you’ve got to wear a face covering.”

source: express.co.uk