The July fire is not the sole blaze at BYU allegedly caused by animal-rights activists.

BYU's Ellsworth Farm was also targeted on May 17 when activists broke into the building and released six rabbits and seven birds, wrote some minor graffiti and spray-painted the windshield of a BYU vehicle.

Activists claimed credit for the earlier incident and posted pictures anonymously via the Web site of Bite Back magazine, which chronicles Animal Liberation Front "direct actions" around the world.

"We talked a lot about saving the animals from the labs and finally decided to act," the posting said. "Sooner or later someone had to stand up and try to do what's right for these animals."

According to BYU officials, the facility that was damaged was not involved in laboratory research that could harm animals