Updated:ORLANDO, Fla. —
Officials said they have identified a suspicious substance found in a mail room on the University of Central Florida campus late Tuesday morning.
Orange County Fire Rescue's hazmat unit responded to the campus after people who came in contact with the substance complained of itching.
According to investigators, seven people came in contact with the substance, later found to be magnesium sulfate. Two of those people were evaluated at the scene after they refused transport to a hospital. The other five were not treated.
Officials said the powder leaked from a package of nutritional supplements.
Firefighers said the substance presented no hazard.
There were no evacuations during the investigation.