LOS ANGELES (KABC) -- The windows of two Metro buses were shot out by a pellet gun in South Los Angeles Monday night.
Officials say several teen suspects armed with pellet guns targeted the first bus, which was heading eastbound on Imperial Highway near Central Avenue, at about 6:49 p.m.
There were six passengers on the bus and none of them were hit, authorities said.
The second bus, which was sent to retrieve the passengers, was hit at 7:24 p.m. No passengers were on board when it was hit.
A third bus arrived and took passengers from the scene.
There are no known suspects, but Los Angeles County Sheriff's officials said the investigation is ongoing.
The latest attack comes days after 17-year-old Reggie Thimes was hit by a stray bullet while riding a Metro bus through Exposition Park.
VIDEO: Teen who was shot on Metro bus says he's lucky to be alive
CNS contributed to this report.