LONDON - British Prime Minister Boris Johnson said on Monday that people should wear masks in confined spaces such as shops and that the government would say more in the next few days about what "tools of enforcement" would be used.

Asked if he would make it compulsory to wear masks in shops, Johnson said: "Masks have a great deal of value in confined places."

"I do think that in shops it is very important to wear a face covering," Johnson said. "Yes - face coverings I think people should be wearing them in shops."

"In terms of how we do that, whether we make it mandatory or not, we will be looking at the guidance and will saying a little bit more in the next few days," he said.

(Reporting by Guy Faulconbridge; editing by William James) ((guy.faulconbridge@thomsonreuters.com; 07825218698;))