UPDATE: 12:35 p.m.
The UPS tractor trailer was heading east near Rocky Ford Road when it went into a curve then hit a guardrail.
It was pulling two trailers; the second one overturned in the median.
Packages spilled out onto the grass.
Workers from UPS picked the packages up and unloaded the rest from the truck and put them onto two other trucks.There is no word on any injuries.
Stay with ABC 13 for further updates.