Thirteen people were hospitalized and dozens of others were treated at the scene after a hazardous materials incident Tuesday in Merrimack, New Hampshire.
Fire officials said a mislabeled package containing white powder led to the evacuation of Spraying Systems Co. on Daniel Webster Highway.
The incident sent 13 people to hospitals in Nashua. Fifty-three others were treated at the scene.
In-depth news coverage of the Greater Boston Area.
No further information was immediately available.