The fire began Sunday morning, Oct. 25, at 213 SW Bay Blvd. Newport officials said firefighters contained it to the 11,000-square-foot facility, preventing it from spreading to neighboring buildings. About 30 to 40 workers were inside when the fire started; all evacuated safely, and no injuries were reported.

By Monday morning, nearly all evacuation orders had been lifted. The city said there was no threat of contamination to the community, while recommending that people wear masks outdoors because of smoke near the plant.

Hazardous-materials teams deployed by the Oregon State Fire Marshal monitored the air for ammonia, which is used in industrial refrigeration. Oregon Rep. David Gomberg, a Democrat from Otis, said teams had not detected a leak but were continuing to monitor the condition of a tank amid concerns about possible structural collapse. Newport Fire Chief Rob Murphy said Sunday that the tanks were stable and had not been punctured, and that smoke was the main concern.

The Oregon Coast Aquarium closed to visitors Sunday and evacuated its premises as a precaution. The fire’s cause and the extent of damage remained under investigation. The state fire marshal’s office is leading the investigation with assistance from the Newport Fire Department.

Pacific Seafood is a major local employer and part of Newport’s fishing economy. Mayor Jan Kaplan said Sunday that the damage could not yet be estimated. Company vice president Ashton Meier said Pacific Seafood was working with emergency responders to assess the loss and would focus on supporting employees, neighbors and the community.