BRACING FOR A SECOND WAVE: The City of Philadelphia is issuing a mandatory order on masks and face coverings requiring residents to wear them in public places as a new spike in cases threatens to delay the city's reopening.

A second wave of the coronavirus is beginning in Philadelphia, Health Commissioner Thomas Farley said Friday as he announced increases in new cases, implemented a requirement for all residents to wear masks, and said he would reconsider whether the city can move into the “green” phase next week.