Both employees were taken to the hospital with non life-threatening injuries.
Police say there are at least three suspects including a female who might be pregnant. The other two suspects are described as males. All of the suspects are in their late teens or early 20s.
Anyone with information can call Crimestoppers at 919-735-2255, text Crimestoppers at 919-273-6585, or call Investigator Dwayne E. Dean at 919-580-4211.