Officials responded to the scene of a fire at the former Breakers Water Park early this morning. 

It took 90 minutes for more than 40 firefighters to control the fire. There were no injuries, according to the Northwest Fire District on Twitter.

The call came in at 12:30 a.m. Friday morning, Northwest said. Upon the crews' arrival, one building, which is thought to be the park's old restaurant, was fully engulfed. The Golder Ranch Fire District was also at the scene. 

The fire was under control at 2 a.m., Northwest Fire said. 

The roof and a wall of a building collapsed. Officials called the building a "total loss."

The cause of the fire is currently unknown, but the investigation is ongoing.

Contact reporter Gloria Knott at gknott@tucson.com or 573-4235. On Twitter: @gloriaeknott