University of Colorado police are investigating a series of threatening messages and documents e-mailed to and slipped under the door of evolutionary biology labs on the Boulder campus.

The messages included the name of a religious-themed group and addressed the debate between evolution and creationism, CU police Cmdr. Brad Wiesley said. Wiesley would not identify the group named because police are still investigating.

“There were no overt threats to anybody specifically by name,” Wiesley said. “It basically said anybody who doesn’t believe in our religious belief is wrong and should be taken care of.”

The first threat was e-mailed to the labs – part of CU’s ecology and evolutionary biology department housed in the Ramaley Biology building – on Friday. Wiesley said Monday that morning staff members found envelopes with the threatening documents slipped under the lab doors.

Wiesley said police will have increased patrols in and around CU science buildings.

“What’s written on paper is what’s written on paper,” Wiesley said. “One of the question marks here is who wrote it and who delivered it.”