Baltimore, Jan 25 (AP) Three Baltimore firefighters were killed and a fourth was injured when part of a vacant home collapsed while they were battling a blaze early on Monday, the city's fire chief said.

The Baltimore City Fire Department said in a tweet that firefighters were responding to a blaze at the three-story rowhome when the four were trapped inside. Crews removed piles of debris to locate the firefighters, the department said.

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Chief Niles R Ford told a news conference that injured firefighter John McMaster was pulled from the rowhome immediately and taken to the hospital, where he was listed in critical condition on Monday afternoon. Dr Thomas Scalea of Maryland Shock Trauma said McMaster was on life support.

"Fingers crossed that he is going to make it and be just fine," Scalea said. "It is hard to know at this point."

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Two other firefighters were pronounced dead at the hospital, Ford said. The fourth trapped firefighter was pronounced dead at the scene, the chief said, his voice breaking at times. Ford identified the dead as Lt Paul Butrim, firefighter/paramedic Kelsey Sadler and EMT/firefighter Kenny Lacayo.

Scalea said Sadler and Lacayo suffered cardiac arrest at the scene and could not be resuscitated. "Today, Baltimore has lost three of the bravest among us," Baltimore Mayor Brandon Scott said. "Baltimore owes them the deepest gratitude and respect that we can offer anybody."

Photographs from the scene showed firefighters being consoled by their comrades. Later, an excavator cleared the remaining debris, leaving a gap between two rowhouses.

Three firefighters were injured battling a blaze at the same location in 2015, The Baltimore Sun reported. (AP)

(The above story is verified and authored by Press Trust of India (PTI) staff. PTI, India’s premier news agency, employs more than 400 journalists and 500 stringers to cover almost every district and small town in India.. The views appearing in the above post do not reflect the opinions of LatestLY)