Crews responded to a Tier 2 Hazmat incident in Topsfield, Massachusetts, fire officials confirmed Saturday.

According to the Massachusetts Fire Marshal's Office, a resident called police when she began to feel sick after smelling something on the second floor of her Coventry Lane home. When Topsfield Police arrived, one of the officers reported feeling sick, as well.

Both patients were transported to a hospital, saying they felt woozy and lightheaded.

Investigators for the fire marshal's office are working to determine what material caused the incident. Iti s not believed to be carbon monoxide.

NECN will have more as this story develops.