FILE - In this Feb. 24, 2020, file photo, U.N. Secretary-General Antonio Guterres speaks during an update on the situation regarding the COVID-19 at the World Health Organization (WHO) headquarters in Geneva, Switzerland. Communist guerrillas in the Philippines said Wednesday, March 25, 2020, they would observe a ceasefire in compliance with the U.N. chief Guterres' call for a global halt in arme