Small plane with 4 aboard makes emergency landing on Route 66 in Cajon Pass

ONTARIO, Calif. (KABC) -- A single-engine plane with four people aboard made an emergency landing on historic Route 66 in the Cajon Pass Monday morning, authorities said.

The single-engine Piper PA-28 was seen on the shoulder of Cajon Boulevard, near Ontario. The pilot landed just before 10 a.m., according to the Federal Aviation Administration.

No injuries were immediately reported.

The FAA and National Transportation Safety Board will investigate the incident.