( CNN ) -- An explosion caused by a chemical reaction at a University of Maryland-College Park chemistry lab caused minor injuries to two students and forced authorities to evacuate the four-story building , according to the Prince George 's Fire Department . Initial reports described an explosion and fire inside the building , but fire department spokesman Mark Brady said in a post to the department 's Twitter account that there was no fire . The department 's hazardous materials team was preparing to go into the building , he said . Two students were being treated at the scene for first-degree chemical burns and superficial cuts , Brady said on the social networking service .
Chemical reaction injures two University of Maryland-College park students . The chemical is used in the production of a variety of chemicals including insecticides and herbicides.