CHARLOTTESVILLE, Va (CBS19 NEWS) -- Kappa Sigma fraternity brothers on UVA Grounds had a fire in their house on Rugby Road Thursday night.

It happened around 10:00 p.m. Albemarle County Fire Rescue, the Charlottesville Fire Department and UVA Police arrived on scene.

According to ACFR, who is leading the investigation along with university police, the fire started in the basement. People inside used extinguishers to try to put out the fire before being forced to leave the room because of smoke. The smoke triggered the sprinkler system, something ACFR says was very important and could have saved lives. 

"Activating that sprinkler system enabled them the opportunity to get out of the house safely. So everyone was able to evacuate safely. It also reduced the fire's destruction which gave time for the fire rescue units to get on scene," said Abbey Stumpf, ACFR PIO.

ACFR says thanks to the sprinkler systems limiting the damage, displaced residents of the building will be able to move back in more quickly.

The university says a small number of people were treated for smoke inhalation, but there was no other injuries.

The cause of the fire is still under investigation.