Firefighters in downtown Los Angeles responded to a massive fire at a three-story commercial building early Tuesday afternoon.

Crews were dispatched to the 300 block of East 4th Street just after 1 p.m. for a “heavy fire involving dense storage” on the third floor of a 5,000-square-foot building,” LAFD said.

Downtown L.A. Fire
A fire burns in a multi-story building in downtown Los Angeles on Tuesday, Sept. 12, 2023. (KTLA)

Over 100 firefighters were on the scene of what is now dubbed the “4th Street Fire.”

The three-story commercial building houses a masonry construction business, LAFD said. The first floor is commercial space and the second and third floors were originally offices.

No injuries were reported.

According to the LAFD, the fire is still smoldering and likely won’t be extinguished until early Wednesday morning.

Once the fire is fully put out, crews can make entry and begin their investigation into what caused the blaze.