Officials said several locations in Hesperia were vandalized by graffiti with gang writing. The damage to homes and businesses was estimated to be between $10,000 to $20,000.
On Friday, a passerby saw some boys tagging on a bride and flagged down a deputy. The boys fled the scene, but officers later detained two suspects.
During their investigation, deputies found 20 locations that the suspects may have vandalized. They also arrested two other suspects.
The situation remained under investigation.