A woman walks in downtown Lisbon, Portugal, June 18, 2021. The Portuguese government announced on Thursday that the entire Metropolitan Area of Lisbon (AML) will be in isolation on weekends, from 3 p.m. on Friday to 6 a.m. on next Monday, in a bid to contain the increase in cases of COVID-19 in the country's capital. (Photos: Xinhua)

People wearing face masks walk in downtown Lisbon, Portugal, June 18, 2021. The Portuguese government announced on Thursday that the entire Metropolitan Area of Lisbon (AML) will be in isolation on weekends, from 3 p.m. on Friday to 6 a.m. on next Monday, in a bid to contain the increase in cases of COVID-19 in the country's capital.

A tram is seen on a street in downtown Lisbon, Portugal, June 18, 2021. The Portuguese government announced on Thursday that the entire Metropolitan Area of Lisbon (AML) will be in isolation on weekends, from 3 p.m. on Friday to 6 a.m. on next Monday, in a bid to contain the increase in cases of COVID-19 in the country's capital.

People wearing face masks walk in downtown Lisbon, Portugal, June 18, 2021. The Portuguese government announced on Thursday that the entire Metropolitan Area of Lisbon (AML) will be in isolation on weekends, from 3 p.m. on Friday to 6 a.m. on next Monday, in a bid to contain the increase in cases of COVID-19 in the country's capital.