David J. Phillip / AP

There were reports of two explosions at the Arkema chemical plant in Crosby, Texas, early this morning, according to The Houston Chronicle and others. Arkema has warned that additional explosions are possible because their chemical products are located in multiple locations.

  • Houston residents living within a 1.5-mile radius of the plant were asked to evacuate.
  • There were reports some deputies and possibly residents were admitted to the hospital after breathing fumes, although the sheriff said Arkema told them it was believed to be a "non-toxic irritant."

Why it happened: The flooding damage from Hurricane Harvey ruined the electricity for the units that were refrigerating the explosive chemicals.

What's next: "The best course of action is to let the fire burn itself out," the company said, in compliance with local authorities' suggestions.

More on Harvey's environmental impact...

"Toxic" mix in Houston: The New York Times reports that Houston officials must grapple with a "toxic stew of chemicals, sewage, debris and waste that still floods much of the city."

  • Among the problems: "Lead, arsenic and other toxic and carcinogenic elements may be leaching from some two dozen Superfund sites in the Houston area."

Spills and releases: E&E News reports that there have been dozens of spills from refineries and chemical plants.

  • "While it could be months before the full environmental impact of the storm — including sewage overflows, leaking underground tanks, and seepage from thousands of submerged homes and cars — becomes clear, preliminary reports show refineries and chemical plants have released millions of pounds of toxic chemicals into the air and water," the report says.
  • E&E spoke to Mathy Stanislaus, who was a top Obama-era EPA official, about Superfund sites. He notes that the biggest dangers are at active cleanups with surface contamination that can spread to floodwaters, as well as the underground storage tanks with oil and chemicals that dot the region.

EPA: The agency said it was inspecting two Superfund sites near Corpus Christi on Wednesday, and is more broadly working with Texas state officials to gauge and respond to the storm's effect. Reuters has more here.

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Updated 29 mins ago - Health

World coronavirus updates

Data: The Center for Systems Science and Engineering at Johns Hopkins; Map: Axios Visuals

New Zealand Prime Minister Jacinda Ardern said it's too early to say whether next month's elections will be postponed after she announced Tuesday four people had tested positive for COVID-19 after no local cases for 102 days.

Zoom in: NZ's most populous city, Auckland, has gone on lockdown for 72 hours and the rest of the country is under lesser restrictions.

Updated 2 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Annelise Capossela/Axios

  1. Global: Total confirmed cases as of 8 p.m. ET: 20,188,678 — Total deaths: 738,668 — Total recoveries: 12,452,126Map.
  2. U.S.: Total confirmed cases as of 8 p.m. ET: 5,138,850 — Total deaths: 164,480 — Total recoveries: 1,714,960 — Total tests: 63,252,257Map.
  3. States: Georgia reports 137 coronavirus deaths, setting new daily record Florida reports another daily record for deaths.
  4. Health care: Trump administration buys 100 million doses of Moderna's coronavirus vaccine.
  5. Business: Moderna reveals it may not hold patent rights for vaccine.
  6. Sports: Big Ten scraps fall football season.

Voters cast ballots in Minnesota, Georgia, Connecticut, Wisconsin and Vermont

Photo: Spencer Platt/Getty Images

Primary elections are being held on Tuesday in Minnesota, Georgia, Connecticut, Vermont and Wisconsin.

The big picture: Georgia and Wisconsin both struggled to hold primaries during the coronavirus pandemic, but are doing so again — testing their voting systems ahead of the general election. Rep. Ilhan Omar (D-Minn.) is facing a strong challenger as she fights for her political career. In Georgia, a Republican primary runoff pits a QAnon supporter against a hardline conservative.