Five hours-- that's how long the Champlain Valley Physicians Hospital was on lockdown after they received a bomb threat Friday morning.

"We received a threat by our website which prompted a security alert for us to notify local authorities," said Stevens Mundy, the president and CEO of CVPH.

They worked with the state police, the sheriff's department and the FBI on the investigation.

"We have a very good relationship with, like I said, before local law enforcement agencies who volunteered to come and help us out," Mundy said.

During the lockdown, nobody was allowed inside or out of the hospital, which left people angry.

"It's a little disgusting these bomb threats and then they have more bomb threats. It's getting crazy. I don't know what the hell is going on with this world," said a man drove all the way to Plattsburgh from Lewis to visit his wife who is undergoing treatment inside and desperately wanted to see him.

"She gets upset if she can't talk to me," he said.

So far, police are investigating what could've happened here.

"In fact, we had tested an electronic communications system this morning, got notification of it, so when we talked to one person who said they got a notification and two drills in one day, they said no, this one's real," Mundy said.

There is no suspect or motive. The hospital says they haven't seen anything like this in years.

"I think there were several of these 15 or 20 years ago, but it's been years and years," Mundy said.

But the hospital is happy with how staff members handled the situation.

"The staff has been doing a phenomenal job today at CVPH," Mundy said.

The police are continuing their investigation. The hospital plans to debrief their staff. They also have to reschedule a few appointments and surgeries.