4 people died in Greenfield after tornado devasted Iowa town, officials say

The tornado that devastated Greenfield, Iowa killed four people, officials confirmed to KETV NewsWatch 7.
"It is just horrific," Iowa Gov. Kim Reynolds said at a news conference.
Reynolds said the tornado "could've been devastating" if schools hadn't let out early Tuesday, since students would've been just getting out of school as the tornado arrived.
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