A tweet from the Harris County Fire Marshal's Office confirmed there had been "a series of chemical reactions" at the Arkema Inc. plant and advised people to stay away from the area.
Whether left stranded, worried about family members living in its path or working on relief efforts, Minnesotans have been wrapped up in the deadly storm's aftermath.
Some 13,000 people have been rescued in the Houston area, and more than 17,000 have sought refuge in Texas shelters. With the water still high in places and many hard-hit areas still inaccessible, those numbers seemed certain to increase.
John Livious and his family settled in Houston after being evacuated from New Orleans during Hurricane Katrina. For him, watching the flooding from Harvey is "unbearable, because it's like deja vu."
As Houston started to flood, small-business owner Jim "Mattress Mack" McIngvale posted a Facebook message urging people who needed shelter to come over. Hundreds streamed in.
Billions of dollars will be needed to clean up and rebuild in areas hit by Harvey. Passing that funding is one more must-do item on the list for a Congress that has struggled to get things done.
In addition to the Minnesota volunteers, more than 50 people from Wisconsin, about 30 Iowans and 19 people from North and South Dakota have traveled south to assist the recovery effort.
"We did all that we could, but it would never have been enough," Kristin Massey wrote on Tuesday. She added, "I encourage everyone to continue to give manpower wherever they can."
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