CNN) — A spate of fireworks debacles and tragic parade accidents wrecked Independence Day celebrations across the country.

The mishaps Thursday left 20 people hospitalized in Southern California, two people dead in parades nationwide, two people seriously injured in Chicago and $1.5 million in damage in Seattle.

Two people killed in parades

In Oklahoma, an 8-year-old boy on a parade float was killed when his father accidentally ran over him, Edmond police said.

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