Springfield Police have released photos of the tractor trailer which ran over a pedestrian last week.
The trailer is a 53-foot, white box trailer, manufactured by Walbash.
The tractor is a white sleeper cab with the number “274” on the front fender.
The license plate number is 740 – 644.
Springfield Police say even though they have the plate number, they would like the name of the driver.
If you have any information, you are asked to call Springfield Police or Crime Stoppers.