Law enforcement agencies are still investigating bomb threats that were sent to Eastern Oklahoma State College campuses. The threat didn't specify a location and so it forced evacuations in multiple campuses across the state.

All campuses at Eastern Oklahoma State College have the all-clear as of 9 p.m. Monday, but Monday afternoon Oklahoma Highway Patrol K-9s searched for bombs. The college's President Janet Wansick said she wasn't taking any chances.

Every student and staff member was quickly evacuated from all of Eastern Oklahoma State's four campuses.

"I called the campus police officer first and said, 'Let's get them out of here,'" Wansick said.

Wansick said it started just before 12 p.m. when an employee got an email threatening the school.

"Basically, it said that there were pipe bombs planted throughout the campus and there could be an active shooter in the afternoon," Wansick said.

Police searched each campus throughout the afternoon but were unable to find anything.

Northern Oklahoma College said it received a similar threat, and evacuated its campuses in Tonkawa, Enid, and Stillwater.

Despite the all-clear, the investigation is far from over. Several agencies are working to trace the email to find out who sent it and why.

Wansick said every student and staff member was kept safe and they all wanted to thank the community who responded with open arms.

"Our community reached out in a great way. They made sure the students were taken care of, had a place to be, were able to be fed," Wansick said.

Students have the all clear to head back to their dorms, but several school buildings will stay locked down Monday night.

This is a developing story.