A massive fire that ripped through a construction site south of the University of Arizona caused an estimated $1 million in damage, putting a student housing project in limbo.

The fire, which was reported shortly after 2 a.m. Tuesday morning near East Broadway and North Tyndall Avenue, destroyed major portions of the construction site for the multistory student housing project.

Fire investigators combed through the site for hours Tuesday to no avail, working to determine the cause and origin of the blaze that partially melted a construction crane and toppled power lines.

It wasn’t immediately clear how the blaze would affect the construction timeline on The Mark student housing complex, scheduled for completion in fall 2019.

The fire burns behind part of the Tucson skyline. The housing project was scheduled for completion in 2019. No injuries were reported.

“We’re still in the process of assessing total damages and their implications on our development timeline and working with local authorities to determine the cause of the fire,” a spokesman for Landmark Properties told the Star in an email.

Dozens of people were also evacuated from an apartment complex across the street, where radiating heat from the fire melted windows and paint and damaged at least 15 vehicles, said Capt. Hector Carpio, a Tucson Fire Department spokesman.

The coolers on the roof of the complex were also damaged, according to University Vista Apartments manager Sandra Rogers.

Those living in the damaged units of the apartment building will not be able to return to their homes until Wednesday at the earliest, Rogers said.

Tucson Fire Department Capt. Barrett Baker, right, speaks with a Southwest Gas representative at the University Vista apartments following a 2-alarm fire at Broadway and Tyndall on June 19, 2018, in Tucson, AZ. The apartments, located on the north side of the fire, were evacuated. Cars, blinds, metal siding and palm trees were melted and scorched by the intense heat of the fire.

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According to the Red Cross, the owners of the apartment complex paid for hotel rooms for three residents. The other residents had alternative places to stay for the night.

Tucson firefighters went to the construction site after a call reporting smoke in the area. Flames were noticeable from as far as Alvernon Way and Valencia Road, the release said.

After firefighters arrived at the scene, they called a second alarm, asking for more units and firefighters to assist in battling the blaze on the three-story wood frame structure, the release said.

It took 17 units and 60 firefighters more than an hour to bring the blaze under control, the release said.

No injuries were reported.

Contact reporter Caitlin Schmidt at 573-4191 or cschmidt@tucson.com. On Twitter: @caitlincschmidt

Contact reporter Gloria Knott at 573-4235 or gknott@tucson.com.

Caitlin is a watchdog reporter covering local government, the University of Arizona and sports investigations. She graduated from the UA's journalism school in 2014 and has won a dozen state awards for investigative and public records-based reporting.

Metro Producer

Gloria is a Tucson native and attended the University of Arizona. She started at the Star as an apprentice in 2017. Following her apprenticeship, she began freelancing until becoming a full-time reporter and producer after her college graduation in 2018.