Authorities say an early-morning fire has destroyed a vacant 115-year-old former luxury hotel just south of downtown Dallas.

Dallas Fire-Rescue spokesman Jason Evans says nobody was hurt in Tuesday’s blaze at what used to be the Ambassador Hotel. Evans says the caretaker was in a nearby trailer and not in the six-story building, which was undergoing renovation for redevelopment.

Evans says the cause of the fire has not been determined. The structure was engulfed in flames before being extinguished around 5 a.m. Tuesday. Firefighters remained on the scene to monitor for hot spots.

Dallas firefighters pour water on the destroyed historic Ambassador hotel just south of downtown Dallas, Tuesday, May 28, 2019. Over 100 firefighters responded to the four-alarm fire. (Tom Fox/The Dallas Morning News via AP)
Dallas firefighters pour water on the destroyed historic Ambassador hotel just south of downtown Dallas, Tuesday, May 28, 2019. Over 100 firefighters responded to the four-alarm fire. (Tom Fox/The Dallas Morning News via AP)

A city website describes the former Ambassador Hotel as a Dallas landmark and Texas Historic Landmark. Authorities say the structure had been vacant for years.

Rubble and a burned awning above a doorway at the historic Ambassador Hotel after a large overnight fire that caused most of the vacant building to collapse in Dallas on Tuesday, May 28, 2019. (Brian Elledge/The Dallas Morning News via AP)
Rubble and a burned awning above a doorway at the historic Ambassador Hotel after a large overnight fire that caused most of the vacant building to collapse in Dallas on Tuesday, May 28, 2019. (Brian Elledge/The Dallas Morning News via AP)
A Dallas Fire and Rescue fireman sprays water from a ladder on the burned out shell of the historic Ambassador Hotel after a large overnight fire that caused most of the vacant building to collapse in Dallas on Tuesday, May 28, 2019. (Brian Elledge/The Dallas Morning News via AP)
A Dallas Fire and Rescue fireman sprays water from a ladder on the burned out shell of the historic Ambassador Hotel after a large overnight fire that caused most of the vacant building to collapse in Dallas on Tuesday, May 28, 2019. (Brian Elledge/The Dallas Morning News via AP)
Dallas Fire and Rescue sprays water on the burned out shell of the historic Ambassador Hotel after a large overnight fire that caused most of the vacant building to collapse in Dallas on Tuesday, May 28, 2019. (Brian Elledge/The Dallas Morning News via AP)
Dallas Fire and Rescue sprays water on the burned out shell of the historic Ambassador Hotel after a large overnight fire that caused most of the vacant building to collapse in Dallas on Tuesday, May 28, 2019. (Brian Elledge/The Dallas Morning News via AP)
Jerry Nappi III, the onsite caretaker/security person who survived the four-alarm fire that destroyed the historic Ambassador hotel, gets a chance to eat some lunch, Tuesday, May 28, 2019 in Dallas. Nappi lives in a camp trailer next to the hotel. (Tom Fox/The Dallas Morning News via AP)
Jerry Nappi III, the onsite caretaker/security person who survived the four-alarm fire that destroyed the historic Ambassador hotel, gets a chance to eat some lunch, Tuesday, May 28, 2019 in Dallas. Nappi lives in a camp trailer next to the hotel. (Tom Fox/The Dallas Morning News via AP)
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