ANADARKO, Okla. AP – Authorities warned pastors in a town where a preacher was brutally killed inside her own church that they should take precautions at their buildings, even as police refused to say exactly what happened.

District Attorney Bret Burns, who described the killing as “horrific,” held a closed-door session with about two dozen pastors, along with members of law enforcement. Several pastors who were there said authorities did not discuss any facts of the case.