Action News was on the scene at the UPS building on the 700 block of Blair Mill Road in Horsham Township.
Crews received a call around 2 this morning of a hazardous material spill inside a big rig.
The truck went up in flames.
Employees who were working at the facility, were evacuated as a precaution.
Two employees were taken to Abington Memorial Hospital after they were reportedly sickened by the toxic fumes.
So far, no word on how it all started.
