A commercial building has collapsed and continues to burn after a basement fire eventually engulfed the building on Tuesday in Industry.

More than 100 members of the Los Angeles County Fire Department battled the blaze that started at about 10:30 a.m. Firefighters initially found flames in the basement of the structure near 9th Avenue and Clark Avenue.

The initial crew could smell and see smoke upon arrival. It was only 30 minutes later the entire building was in flames.

Firefighters are still targeting that fire as of 12:30 a.m.

The current tactic is “surround and drown,” according to spokesperson Scott Miller.

“The situation itself is very dangerous,” Miller said.

One firefighter was taken to a local hospital with unspecified minor injuries, Miller said.

The cause of the fire is under investigation. The building, which was abandoned, was once an insulation factory, Miller said. It is unknown what contents were stored in the basement.