LEMOORE — A high school student took a gun onto the Lemoore High School campus in what Lemoore Police officials called an “isolated incident,” leading to the arrest of the student and the student’s father.

On Monday around 9 a.m., a 16-year-old Lemoore High student was found to be in possession of a firearm in his backpack at school, police said.

Police said school administration immediately called the Lemoore Police Department and put forth the appropriate safety action. Officers said they responded to the scene, secured the weapon and arrested the student without incident.

Officers said the investigation revealed that the student did not make any threats toward the school or others. Lemoore High School officials informed parents about the incident as well, police said.

Authorities said further investigation revealed the pistol was an illegal weapon and also had a high-capacity magazine.

Officers said detectives assisted with a search warrant of the student’s residence located within the city limits of Lemoore.

Police said the search warrant resulted in an additional firearms confiscated from the residence and another firearm was recovered from a vehicle owned by the student’s father, 47-year-old David Escalera Sr.

The firearms recovered from the residence were unsecured and readily accessible, and officials said one of the seized firearms also had altered serial numbers.

Police said all firearms were seized and Escalera Sr. was arrested on suspicion of felony child endangerment, criminal storage of a firearm, possession of an assault weapon, and possession of a firearm with altered serial numbers.

Authorities said Escalera Sr. was booked in the Kings County Jail with a bail set at $95,000 and the student was taken into custody and booked into the Kings County Juvenile Center.

The Lemoore Police Department said it will continue to take every measure to ensure the safety of the students and staff. Officials said students and staff are strongly encouraged to call authorities if they see or hear anything suspicious.