Panther Valley High School officials say there was no danger to students after someone wrote a threat on a wall of a bathroom in the school Wednesday.

The threat, which has not been specified, came after two other unfounded threats at Carbon County schools this week.Panther Valley High School students were to be dismissed at the normal time Wednesday, according to school officials.School and law enforcement officials implemented the school's emergency protocol plan after finding "something scribbled on the wall of a boys' restroom" late Wednesday morning, district Superintendent Dennis R. Kergick Sr. said."The threat was hardly even a threat; no credibility there," Kergick said in an email.The school was never officially dismissed during the threat, but students were temporarily moved to Panther Valley Intermediate School while school and law enforcement officials conducted a search of the building.After a search of the school, concentrated on a specific area that officials did not identify, the "all clear" was given around 1 p.m.High school classes were able to resume at that time.Another call came Thursday morning when graffiti was reported at the Panther Valley Intermediate School.Details were not available at press time.Kergick said it's the district's obligation to investigate threats, no matter how credible, or not, they are."The district put into action its emergency protocol plan. The district plan emphasizes a specific set of procedures geared toward effective crisis management," he said. "The PVSD works very hard to provide a safe learning environment."Unfounded bomb threats were also reported at Jim Thorpe Area High School on Monday and Lehighton Area Middle School on Tuesday.Joe Schatz, Jim Thorpe police chief, said the department had three officers at the school from 12:25-2:30 p.m. Monday."I'm not saying we shouldn't be responding to this type of call, but it does take officers away from their duties, whether that is being out on patrol or working another investigation," Schatz said.There is no cost for local departments to bring in bomb-sniffing dogs to search schools, but it is time-consuming."It's time-consuming because we have to wait for the dogs to go in the school. We will absolutely not compromise the safety of our officers. In this case, we were lucky because the handler had the dog in the general area. If the dog wasn't close by, who knows how long we would have waited," Schatz said.For Jim Thorpe, the protocol is to call in dogs if a note is found."If someone actually reports seeing something that looks like a bomb, we would contact the Allentown bomb squad," Schatz said.Schatz didn't calculate what it cost the department Monday to respond to the school."We won't put a dollar figure on public safety," he said.