SAN MARCOS (CBS 8) - A precautionary lockdown went into place Wednesday at Twin Oaks High School in San Marcos after a dispute between a father and son at a house in the area.

The incident occurred around 9:15 a.m. at 158 Cassou Road near North Twin Oaks Valley Road, the San Diego County Sheriff’s Department (SDSO) said.

Deputies say the lockdown will be lifted soon.

This is a developing story. Check back for updates.