The College of St. Scholastica and a hospital in Hayward, Wis., were among several locations nationwide that received bomb threats via email Thursday.

St. Scholastica send out a message headlined "Email hoax" on its student portal. The message said that the college had received several emails demanding a bitcoin payment to prevent a bomb from going off. "There is no threat from this hoax and please do not respond to the sender of the email," the message read.

The Sawyer County Sheriff’s Office was informed about a bomb threat at 12:43 p.m. that was sent via email to Hayward Area Memorial Hospital and Water’s Edge, which shares a building with Essentia Health-Hayward Clinic.

According to authorities, a suspicious package was located in a resident’s room in the assisted-living portion of the hospital. The package was determined not to be a threat after it was checked by a Duluth Police Department bomb-sniffing dog, a news release said.

Hospital video surveillance showed that family members of the resident left the package in the room, authorities said. The incident remains under investigation by the Sawyer County Sheriff’s Office.

According to the Washington Post, similar threats appeared to stretch from coast to coast, none of which were considered credible. As word of the threatening messages spread Thursday, the FBI said in a statement that it was "aware of the recent bomb threats made in cities around the country, and we remain in touch with our law enforcement partners to provide assistance. As always, we encourage the public to remain vigilant and to promptly report suspicious activities which could represent a threat to public safety."