A fire broke out at the site of what was once slated to be a Trump Organization hotel in Azerbaijan on Saturday, injuring several people, according to reports.

The fire broke out in one of the middle floors of the unopened Trump International Hotel development in Baku, Azerbaijan, The Independent reports. The company canceled the development after the 2016 election.

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At least four people were injured in the blaze Saturday, according to The New York Times.

The deputy head of Azerbaijan's Emergency Situations Ministry told The Independent it took more than three hours to extinguish the blaze.

The Associated Press reports that Trump earned between $2.5 million and $2.8 million between 2012 and 2016 in hotel management fees on the project despite it never opening to the public.

Efforts to battle Saturday's fire were complicated by the Azerbaijan Grand Prix, which is being held Sunday in the city and has led to road closures.

Saturday's blaze comes a few weeks after a fatal fire at Trump Tower in New York, which killed one person.

That fire was the second affecting Trump's signature New York headquarters in a matter of months.

Firefighters previously responded to a minor fire in a cooling tower on the building's roof in January, during which two people sustained injuries.