Car-to-car shooting reported near Monrovia

MONROVIA -- A car-to-car shooting was reported Thursday, however no one initially appeared to have been wounded in the attack, authorities said.
The incident was reported just before 4:30 p.m. at California and Shrode avenues in an unincorporated county area near Monrovia, Los Angeles County sheriff's Sgt. Debra Herman said.
Police responded to reports that two Latino men in one car had opened fire on another car, the sergeant said, however both vehicles were gone when deputies arrived and no one came forward as a victim. A check of area hospital found no gunshot wound victims.
Officers found bits of broken glass and a spent bullet casing at the shooting scene, she added.
A motive was unknown, and no further details were available.