Updated

BREAKING: Officials in Harris County reported two explosions and black smoke at a flooded chemical plant in a small town outside Houston.

The Arkema Inc. plant in Crosby — about 25 miles northeast of Houston -- lost power Sunday and its backup generators amid Harvey's days-long deluge, leaving it without refrigeration for chemicals that become volatile as the temperature rises.

"The fire will happen. It will resemble a gasoline fire. It will be explosive and intense in nature," a spokeswoman said.

OVERNIGHT ITEMS: Harvey damages oil tanks, spilling 30,000 gallons of crude | Residents warned: Get out or die | Concerns over fake agents

'TUCKER TONIGHT' 

A Princeton University professor who signed an open letter encouraging incoming college freshmen to "think for yourself" told Fox News' "Tucker Carlson Tonight" Wednesday that "you cannot seek the truth if you're a conformist."

"We’re telling our students not to fall into that groupthink," Professor Robert P. George told host Tucker Carlson. "You should be pursuing the truth. That’s what being in college is all about. It’s learning to pursue the truth and it’s learning to become a life-long truth seeker."

PELOSI SLAMS ANTIFA

House Minority Leader Nancy Pelosi, D-Calif., says the "violent" members of Antifa — those members of the anti-fascist group who allegedly attacked conservative demonstrators over the weekend in Berkeley, Calif. — should be arrested and prosecuted.

"Our democracy has no room for inciting violence or endangering the public, no matter the ideology of those who commit such acts," Pelosi said in a statement Wednesday, the San Francisco Chronicle reported. "The violent actions of people calling themselves Antifa in Berkeley this weekend deserve unequivocal condemnation."

COMING UP ON FOX NEWS CHANNEL

7:30 AM ET: Acting Secretary of Homeland Security Elaine Duke and Federal Emergency Management Agency Administrator Brock Long will participate in a media availability to provide an update on federal support to state, local, and tribal response efforts in Texas and Louisiana. Warch live on FoxNews.com and Fox News Channel

COMING UP ON FOX BUSINESS

6:50 AM ET: Bill Moore, Zello CEO, to be on ‘Mornings with Maria’

7 AM ET: Joe M. Allbaugh, Former FEMA Director will appear on ‘Mornings with Maria’

7:40 AM ET - Gail McGovern, Red Cross President will be a guest on ‘Mornings with Maria’

8 AM ET - Art Acevedo, Houston Police Chief will be on ‘Mornings with Maria’

8:20 AM ET; Ted Olson, Texas Congressman (R ) Represents Sugar Land, TX District will be on ‘Mornings with Maria’

9 AM ET: Andy Puzder- Fmr. CKE Restaurants CEO will be on Varney & Company

2 PM ET: Bill Bradley, Anheuser-Busch vice president for community affairs will be on ‘The Intelligence Report’

2 PM ET: Michael Brown, Former FEMA administrator, will appear on ‘The Intelligence Report’