Firefighters have contained a massive warehouse blaze in West Baltimore that displaced dozens of nearby residents and disrupted morning train commutes.

The fire is now contained to the original building, Baltimore City Fire Department spokesperson John Marsh said Tuesday, which is located near the intersection of Edmondson Avenue and North Bentalou Street.

There is still “deep-seated fire” in multiple locations, Marsh said, and around 50 firefighters continue to chase hot spots.

The cause of the fire has not yet been determined, and no injuries have been reported.

More than 225 firefighters responded to the seven-alarm fire Monday night at the multistory warehouse, which abuts train tracks used by MARC and Amtrak.

Light gray smoke still poured out of the building Tuesday morning as Baltimore City Fire Chief James Wallace and Mayor Brandon Scott stood near the scene.

The warehouse, Wallace said, is a “very large commercial structure,” with three to four stories above ground and two below. Firefighters have not been able to access the underground floors due to stability issues in the back of the building and near Amtrak, Wallace said.

Building engineers are working on a demolition plan.

“It’s going to take a lot of work,” Wallace said.

Wallace also said it has been years since the city has had a seven-alarm fire.

Video shared with WJZ showed flames spreading Monday night to nearby trees and thick, dark smoke obscuring the view of a red water tower on top of the warehouse. Aerial photos showed large plumes of smoke and crews working from multiple angles to hit the warehouse with water.

The fire started at the back right of the building, which is used to store mattresses. Wallace said Monday that the warehouse had two basement levels “stacked full” of mattresses.

About 30 nearby residents were asked to temporarily relocate because of concerns about smoke and radiant heat, and to give fire crews better access to the warehouse, though officials said it wasn’t an evacuation.

The American Red Cross of the National Capital & Greater Chesapeake Region is supporting residents who were asked to temporarily leave their homes in the 600 block of North Bentalou Street, a spokesperson said.

Residents from fifteen households will be temporarily housed by the city in a hotel, a spokesperson for the American Red Cross said in an email.

Several city agencies were involved in the response to this fire, Wallace said, with the Baltimore City Department of Transportation assisting with traffic and the MTA helping to bus residents to a nearby fire station.

Around 9:30 p.m., smoke was visible on Doppler radar, according to WJZ’s meteorologist Derek Beasley. The relatively light winds on Monday evening pushed the smoke plume north toward Druid Hill.

Beasley said the weather Monday evening likely worked in the fire crews’ favor, especially with rain in the forecast.

That’s a “huge difference” compared to what crews dealt with during the Camp Small fire at the end of 2024, where high winds fanned the flames of an inferno.

The Maryland Department of the Environment advised people to avoid the area and to leave or move indoors if they feel affected by the smoke.

The Maryland Transit Administration said service on the MARC Penn Line is canceled on Tuesday morning.

Amtrak train service between Wilmington, Delaware, and Washington, D.C., was paused but resumed Tuesday, though passengers were told to expect delays due to single tracking through the area.

Firefighters got word of an ignition just before 7 p.m.

The fire in West Baltimore happened the same day that a fire in downtown Baltimore injured two firefighters, one of them critically.

Jessica Gallagher and Jerry Jackson contributed to this article.

WJZ is a media partner of The Baltimore Banner.

This is a developing story.