Three people were injured Monday after explosives caught fire at a southern New Mexico university research and testing site.
New Mexico Institute of Mining and Technology spokesman Thomas Guengerich says the injuries to a university employee and two subcontractors were non-life threatening.
He says four people had been moving the explosives from a flatbed truck onto a concrete pad as part of routine testing.
The fire spread to two vehicles, destroying them before crews were able to put it out.
The workers sought shelter in a nearby bunker. Those injured were taken to hospitals in Socorro and Albuquerque to be treated for burns.
Guengerich says authorities are looking into what caused the fire.
The testing site is a 30-minute drive from the university's main campus in Socorro.