Firefighters are again battling flames at a recycling facility in Dundalk after a fire that started over the weekend rekindled on Thursday.

Crews were back at Owl Metals Inc. facility Thursday morning working to put out the fire, the Baltimore County Fire Department said in a post shared on social media.

“A rekindle after such an intense fire with a massive amount of combustible is somewhat expected. Deep seated fires can take days to extinguish and often rekindle,” Baltimore County Fire Department Public Information Office Bureau Chief Travis Francis said in an email to The Banner.

George DiPietro, the owner of Owl Metals Inc., a center that purchases aluminum, copper, gold, silver and other metals and materials, was at the facility on Thursday.

He still has some employees working.

“I don’t have much for them to do, but they got rent, car payments, insurance, probably need something to eat,” DiPietro told The Banner.

Due to the fire, DiPietro said the back of his company’s building is damaged, and they are having electrical issues. The software they depend on for their work is also not working.

“We’re totally shut down,” he said. “We’ll get by some way.”

The Maryland Department of the Environment issued an air quality advisory on Thursday urging sensitive groups to limit their outdoor activities near the recycling facility.

By Thursday, the state was forecast to have moderate air quality levels due to weather conditions, but, “residents across southeastern Baltimore County and Baltimore City may experience locally higher concentrations as a fire from a nearby recycling plant in Dundalk continues to smolder.”

Douglass Huffman, who has lived in the neighborhood near the facility for over 50 years, said although the facility has caught fire before, none of the blazes have been as big as the one that sparked on Saturday.

“It’s the worst,” Huffman told The Banner.

For him, “smoke’s been the biggest headache.”

“Other than the smoke, you can’t really do nothing about that,” he said.

Debra Everett, who’s lived in her home on Rettman Lane since 1992, said her family began feeling the effects of it since Saturday night.

“We’ve just been coughing and our throats have been sore and just been stuffy, but we’ve been doing pretty good since we got those air purifiers,” Everetts said.

On Monday, Everett’s son spent nearly $70 buying four humidifiers for their home: one for the living room, two for the bedrooms and one for the basement.

They’ve also put plastic over all the windows in their home and, after reaching out to her veterinarian with concerns, she’s started taking her two dogs in the backyard instead of the front yard to relieve themselves.

The three-alarm fire started on Saturday at the facility and continued burning into Sunday afternoon. It caused a partial building collapse and led to road closures in the area.

On Tuesday, officials said firefighters were at the facility in the 1900 block of Rettman Lane putting out hot spots and monitoring for any flare-ups.

No injuries have been reported. The cause of the fire remains under investigation, officials said.

This is a developing story.