BRATTLEBORO, VT (MyKeeneNow) Emergency crews responded to a hazardous materials situation early Monday morning at a facility on Technology Drive after an alarm signaled a potential danger inside the building.

The Brattleboro Fire Department arrived at 90 Technology Drive-a distribution warehouse for vitamin and supplement company New Chapter Inc.-at approximately 6:30 a.m. and discovered elevated levels of ammonia—measuring 273 parts per million—within the structure, according to a news release. Firefighters confirmed that all occupants had evacuated safely before calling in the Vermont HAZMAT Team for further assessment.

HAZMAT specialists arrived on-site and identified the source of the leak, ultimately determining that the area was safe. Officials declared the situation under control by 9:24 a.m., though cleanup operations continued for some time after.

No injuries were reported, and authorities are now in the process of turning the building back over to its owner.