Armed robbers are suspected of stealing $4million in gold from an 18-wheeler taking the precious  from Florida to Massachusetts on Interstate 95. The Wilson County Sheriff's Office in North Carolina said Monday that two security guards working for Transvalue Inc of Miami reported pulling to the side of the interstate on Sunday evening after their vehicle began having mechanical problems. They were then approached by three armed men driving a white van who ordered the guards to lie on the ground, tied their hands behind their backs and marched them into nearby woods before taking 275lbs of gold. Scroll down for video . Search: Armed robbers are suspected of stealing $4million in gold from an 18-wheeler taking the precious from Florida to Massachusetts on Interstate 95. Above, deputies investigate a wooded area near the road . Location: Two security guards working for Transvalue Inc of Miami were reportedly approached by three armed men driving a white van after pulling over on the interstate. The men 'ordered the guards to lie on the ground, tied their hands behind their backs and marched them into nearby woods, before taking 275lbs gold' The form of the metal, stored in three barrels, has not been released. Silver was also being carried in the truck, which was stopped near mile marker 114 on the highway. Locks on the back of the truck were sawed off, according to WITN. The Federal Bureau of Investigation has joined in the search for the robbers, thought to be male and possibly Hispanic. Wilson County Sheriff's Deputies investigate an area near Interstate 95 in Wilson, North Carolina, on Monday . Investigation: The Federal Bureau of Investigation has joined in the search for the robbers, thought to be male and possibly Hispanic. Neither of the guards was injured during the 'very rare incident', TransValue said . TransValue, which specializes in transporting valuable goods and money between financial centers, keeps goods they move insured for up to $100million. Its owner Jesus Rodriguez said that neither of the guards were injured during the 'very rare' incident, according to WRAL. Rodriguez is currently heading to Wilson County, which is about halfway between Miami and eastern Massachusetts. The owner of TransValue, which was transporting the gold, is now traveling to North Carolina (pictured) A reported 275lbs of gold were stolen, though it is not known which form the truck's precious metal took (file photo)
Metal was en route from Miami to Massachusetts when truck stopped . Three armed men in white van tied guards and marched them into woods . Owner of transport company TransValue says his guards weren't injured . Goods transported with company are insured for up to $100million .