Sweeney Hall is no longer evacuated due to a chemical spill after the Ames Fire Department neutralized the situation Tuesday. 

Chief Michael Newton of the ISU Police Department said the spill happened while people were working on an experiment. He said there were no injuries and those working on the experiment took the right precautions by pulling the chemical spill alarm and evacuating. 

The Environmental Health and Safety Department will now review whether the proper protocol was followed to avoid a chemical spill, but Newton said it appears all protocol was followed at this time.