IRVINE (CBSLA.com) —  Irvine police officers Wednesday arrested an 18-year-old they said shot a BB rifle at several targets over two days, including passenger cars, two workers and a school bus.

At approximately 2:15 p.m. Wednesday, police responded to a call of a school bus and one passenger vehicle being struck by BB’s in the area of Yale Avenue and Hicks Canyon.

Officers responding to the scene identified Irvine resident Paul Joseph Horn, 18, as their suspect.

Authorities say Horn shot a BB air rifle from his backyard. Horn was booked at Orange County Jail for felony assault and vandalism. Horn is being held in lieu of $100,000.

On Monday, in the same general vicinity, two concrete workers reported being struck by BB’s in the morning. Neither worker was hurt. Later that evening, another passenger vehicle was struck by projectiles. The car reportedly sustained only paint damage.

On Wednesday, two high school girls in a passenger vehicle were uninjured although the rear window of their car was shot out.

The window of the school bus door shattered and the driver suffered a minor injury to his chin. The 17-year-old bus passenger, a special needs student, was also uninjured.