Agricultural officials in Iowa said Tuesday they’ve uncovered at least two more bird flu outbreaks among commercial flocks of birds.

The latest outbreaks will require a total of over 1.5 million hens and turkeys to be killed, according to the Associated Press. One outbreak occurred at an egg farm roughly 60 miles from Des Moines, where a majority of the birds that must be executed will be killed, the outlet reported. The other was identified at a turkey farm some 65 miles north of Iowa’s capital, with at least 28,000 birds there requiring execution, AP continued.

The bodies of the killed birds will likely be put in a compost pit on the farms that housed them, AP reported.