Cambria County, PA, authorities are searching for those responsible for tampering with the county's radio frequencies used by 911, EMS, police, and Cambria County Prison, reports the Tribune-Democrat.

"Unauthorized individuals have used Cambria County radio frequency to transmit false information to authorities while posing as police officers and corrections officers," District Attorney Kelly Callihan said in a statement. "These actions are criminal and potentially place the safety of our first responders and the public in jeopardy."

Robbin Melnyk, Department of Emergency Services deputy director and 911 coordinator, said there were 35 bogus transmissions on Thursday and Friday.

"We are in the process of developing a new radio system with the technology to prevent this from happening," said Melnyk. "Until that system is put into place this could happen again."