Seoul, Mar 13, 2021, SPA -- South Korea's agricultural authorities said Friday they are investigating yet another suspected case of highly pathogenic bird flu amid growing concerns over a prolonged battle against the animal disease, Yonhap reported. The latest suspected case of the H5N8 strain of avian influenza linked to farms was reported in Chungju, 147 kilometers south of Seoul, according to the Ministry of Agriculture, Food and Rural Affairs. The egg farm is raising 550,000 chickens. --SPA 01:10 LOCAL TIME 22:10 GMT 0001 www.spa.gov.sa/w1520893