Scores of similar, emailed bomb threats have been reported to police in multiple US states, prompting panic and evacuations, as the culprits demanded payment in Bitcoin form, and threatened to cause “many victims” otherwise.

Threats were made, mostly via email, to seemingly random locations like schools, businesses, stores, attorneys’ offices and even to a Zoo, police said.

So far, reports of the sinister demands have been received in New York, Massachusetts, Tennessee, Oklahoma, Kentucky, Louisiana, Florida, Iowa, Michigan, Utah, California, Illinois, and Mississippi.

Several area businesses are receiving what appears to be a robo-email saying there is a bomb threat to their business unless they pay money in Bitcoins. We have found no credible evidence any of these emails are authentic. See CRPD Facebook for more details. #Scam — Cedar Rapids Police (@CR_Police) December 13, 2018

Wave of Bomb Threats: Scores of similar bomb threats reported across Chicagoland and USA prompting some evacuations. Email threats demanding bitcoin ransom. Public building, businesses. Law enforcement doesn't think there are actual bombs. — ChuckGoudie (@ChuckGoudieABC7) December 13, 2018

Police in Cedar Rapids, Iowa, said they had “found no credible evidence” that any of the email threats in the area were "authentic.”

#BREAKING Employees at the Penticton Honda, Penticton Hyundai, and Skaha Ford have been evacuated due to an alleged #provincewide bomb threat. Follow @PentictonNews for more updates pic.twitter.com/eXMCfVGk9x — Jordyn Thomson (@JordynThomson01) December 13, 2018

The emails claim that an explosive device was hidden and "covered up carefully" in the building in question. If it were detonated, the author writes, there would be "many victims."

The Bitcoin-spam-scammers have moved on from fake blackmail threats to fake bomb threats. So far no-one's paid anything to the address, and I suspect it'll stay that way. pic.twitter.com/N5MOdmu8Jm — Tom Scott (@tomscott) December 13, 2018

Dozens of businesses, schools, government buildings, hospitals and other offices around the country have been evacuated after a bomb threat email demanding a Bitcoin payment was sent out nationwide: https://t.co/GQ0chXveYb#breakingpic.twitter.com/scANeNl5YV — Tom Cleary (@tomwcleary) December 13, 2018

*sigh* bitcoin spam has moved from extortion (I'll tell everyone what kind of porn you watch) to bomb threats... lovely — goozbach (@goozbach) December 13, 2018

Earlier on Thursday, more than two dozen schools were placed on lockout in Colorado, following false threats about explosive devices planted at Columbine High, the high school where the infamous 1999 school shooting took place.

The emails pledged that the bombs wouldn't be detonated if a payment of $20,000 were made in Bitcoin. "If you are late with the money the device will detonate," they read.

Also on rt.com Columbine High School on lockout: Threats of planted bombs, ‘suspicious person’ in the area

The NYPD's counterterrorism department said on Twitter that it was monitoring multiple threats sent to various locations in the city, noting that similar threats had been seen nationwide and are "not considered credible."

We are currently monitoring multiple bomb threats that have been sent electronically to various locations throughout the city.These threats are also being reported to other locations nationwide & are NOT considered credible at this time. pic.twitter.com/GowGG4oZ9l — NYPDCounterterrorism (@NYPDCT) December 13, 2018

The Bureau of Alcohol, Tobacco and Firearms tweeted that it was "aware of recent bomb threats" and would remain in contact with local authorities.