HOUSTON (CBSDFW.COM/AP) — Nearly two dozen people suffered non-life threatening injuries in an explosion and a fire Saturday at a chemical plant near Houston, an official said.

La Porte Emergency Management Lt. John Krueger says a valve exploded at Kurary America Eval, causing burns similar to a severe sunburn, and other injuries.

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The plant’s address is Pasadena, but is located in an unincorporated area between the Houston suburbs.

Krueger said all workers are accounted for and no chemicals were released.

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Initial injury estimates ranged from six to more than 20. Krueger said that’s the result of an initial count before a “true count” of injuries was completed.

Kuraray America Eval says in a news release that it’s cooperating with investigators.

A Kurary spokeswoman did not immediately return phone messages seeking further information.

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