DES MOINES, Iowa (AP) — The Iowa Department of Agriculture says a turkey farm in Sac County has become the third farm in Iowa to have confirmed cases of bird flu. The farm’s 34,000 turkeys will be killed to contain the virus. The farm is within a six-mile monitoring zone of the first turkey farm identified in Iowa to have the H5N2 virus.

Sac County is the adjacent county south of Buena Vista County where a farm with 27,000 turkeys was confirmed to have the virus on April 13. An egg-laying facility with 3.8 million chickens in Osceola County northwest of the turkey farms also has the virus. State agriculture officials say in the latest case announced Thursday, turkeys began dying and tests at Iowa State University confirmed the bird flu virus is present.