Berkeley firefighters evacuated 200 U. California-Berkeley students from the Ehrman Hall dorm in Unit 2 at 5 a.m. Saturday morning after a fire in the trash chute filled the top four floors of the building with thick smoke.

Assistant Fire Chief Ron Foster said around 100 students were triaged outside the building and two students were hospitalized for smoke inhalation.

The two individuals were treated and released later in the morning, according to campus spokesperson Dan Mogulof.

Foster said the fire was put out by 5:30 a.m., though firefighters came back six hours later at 11 a.m. when smoldering debris located between the chute’s sheet metal and the wall continued to fill the building with smoke.

Firefighters used a thermal imaging camera to find the “hot spot” and extinguished the debris.

The evacuated students have been moved to another building inside the Unit 2 housing complex while the building is being assessed for damages, Mogulof said. State and campus officials will be investigating the fire’s cause.

Foster said some of the floors of the building suffered smoke and water damages.