A man wearing a face mask walks in downtown Lisbon, Portugal, June 23, 2020. Portuguese Prime Minister Antonio Costa announced on Monday that the "state of calamity" will be maintained in Greater Lisbon with tougher rules to contain the COVID-19 pandemic. (Photo by Pedro Fiuza/Xinhua)

A woman wearing a face mask walks in downtown Lisbon, Portugal, June 23, 2020. Portuguese Prime Minister Antonio Costa announced on Monday that the "state of calamity" will be maintained in Greater Lisbon with tougher rules to contain the COVID-19 pandemic. (Photo by Pedro Fiuza/Xinhua)

A man wearing a face mask walks in downtown Lisbon, Portugal, June 23, 2020. Portuguese Prime Minister Antonio Costa announced on Monday that the "state of calamity" will be maintained in Greater Lisbon with tougher rules to contain the COVID-19 pandemic. (Photo by Pedro Fiuza/Xinhua)

People wearing face masks are seen in downtown Lisbon, Portugal, June 23, 2020. Portuguese Prime Minister Antonio Costa announced on Monday that the "state of calamity" will be maintained in Greater Lisbon with tougher rules to contain the COVID-19 pandemic. (Photo by Pedro Fiuza/Xinhua)