fireworks explosion has killed two people, injured another as well as a dog and a horse.It's believed a firework stack went off in Ontario, California, and 'shook' the neighbourhood, according to witnesses.Multiple blasts were heard around 12.30pm local time, with two homes burned.Thick smoke filled the air and crews cordoned off the area to residents and passers-by.Ontario Fire Department Chief Gayk confirmed that two people died in the explosion, believed to be caused by commercial-grade fireworks.A horse trapped against a wall near a pile of burning debris, and a dog, were both injured but are 'doing well', reports CBSN.One social media user claimed the explosion "shook their parent's house".There are reports the fire damaged a number of.
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