A 15-year-old boy who is a student at Calaveras High School in San Andreas was arrested Tuesday in connection with a report he mentioned bringing a firearm to campus.

Whether it was a joke or a threat was unclear from law enforcement and school district accounts of the incident.

There was a discussion Tuesday at the school, and people were talking about lockdown drills and school safety, when the boy was heard making statements similar to “I guess I better not bring a gun that day,” staff with the Calaveras County Sheriff’s Office said in an alert sent out Tuesday afternoon.

The same boy was overheard talking about guns in another conversation, according to Sheriff’s Office staff.

When people who work at the school learned about the boy’s comments they called the Sheriff’s Office.

Deputies responded to the school and confirmed “there was no specific expressed threats made and no weapons in the student’s possession,” Sheriff’s Office staff said.

Deputies arrested the boy and removed him from campus. They said they “took him to juvenile probation while parent notification is underway.”

Staff with the Sheriff’s Office said their agency is committed to completing full and immediate investigations involving threats and/or weapons at local schools.

“Inappropriate comments or statements, whether students think they are a joke or made as a threat, will be taken seriously with just and serious consequences,” staff with the Sheriff’s Office said.

Asked for perspective on the incident, Mark Campbell, superintendent for Calaveras High School District, said he’d heard the boy was possibly a 10th grade student and he did not know what time the boy was arrested.

Campbell added, “I do applaud the quick and decisive efforts by all involved.”

School security and student safety have been top priority concerns at Mother Lode schools in recent weeks since the Feb. 14 shooting deaths of 17 students and staff members at Marjory Stoneman Douglas High School in Parkland, Florida.

Several superintendents in Calaveras and Tuolumne counties, including Campbell, said in late February they disagree with President Donald Trump’s proposal to arm teachers to prevent school shootings.

Contact Guy McCarthy at gmccarthy@uniondemocrat.com or 588-4585. Follow him on Twitter at @GuyMcCarthy.