DALLAS (CBSDFW.COM) – A United States Postal Service (USPS) worker, driving along Interstate-30 in Dallas, was shot and killed early Monday morning.

Dallas police received a call reporting a shooting just before 2:30 a.m. Officers went to the scene and found the driver inside a USPS box truck had been shot. The 18-wheeler was stopped in the eastbound lanes of I-30, on the ramp to southbound Interstate-35 — it had crashed against the guardrail.

Two other postal service trucks pulled up shortly after the shooting. A USPS worker at the scene told CBS 11 News the truck driver who was shot died before help could arrive.

Source: U.S. Postal Service Driver Shot & Killed On Dallas Highway « CBS Dallas / Fort Worth