Three vehicles were set on fire and 11 others were harmed in Silwan, a neighborhood in east Jerusalem.
A 19-year-old Arab boy was suspected to be responsible for the act, a result of neighborhood conflict.
Neighbors showed up at the young man's house following the incident. His father, concerned for his son's well-being, called on police for reinforcement.
The young man took responsibility for the arson in a police investigation.