TROY, N.Y. -- Firefighters are still trying to figure out what started a massive fire at the Cottage Street Apartments in Troy.

At least 30 people are now displaced after Thursday night's fire.

Troy Fire Chief Tom Garrett says it broke out around 8:45 p.m.

The building has 12 units inside. No one was injured, but the apartments sustained heavy damage.

Crews were able to knock the fire down after everyone got out safely.  But Chief Garrett says this was a challenge for firefighters.

"It had a really good head start on us, like i said when the flames are coming through the roof when you get there, we had multiple calls, these guys were up against it as soon we got there,” Garrett said.

One college student who wasn't home at the time of the fire believes he lost everything.

"Everything has to be destroyed, guaranteed. There’s nothing I can do other than pray and hope for the better," the student said.

The Red Cross is assisting those displaced.