HOUSTON -

It's estimated that at least a couple dozen people were displaced after a fire destroyed an apartment building in West Houston Sunday morning.

The Houston Fire Department was called to The Waverly apartments in the 2300 block of Hayes Road around 3:30 a.m. The first firefighters to arrive reported that fire was visible on both the first and second floors, and a second alarm was pulled in order to get additional crews to the scene.

According to HFD, one man suffered first- and second-degree burns but was not taken to a hospital for treatment.

Firefighters reported fire, smoke and water damage throughout the building.

"The whole building is going to be affected. The whole roof was burned off," said HFD Deputy Chief Herman Gonzales.

The Red Cross said 14 of the units were occupied. Volunteers responded to the scene to help displaced residents. Volunteer manager David Spilman told Local 2 the organization was working with apartment management to make sure residents had a place to stay Sunday night.

"There are other apartments available here and there is another complex where they're putting people. There's a sister complex where they are putting people and anyone that can't immediately be put into an apartment will be put in a hotel for a few days," said Spilman.

Spilman said the Red Cross response also included a nurse and mental health professional. Since some of the residents were forced out of their homes wearing only pajamas, the organization is also making sure they can purchase a change of clothes.

The cause of the fire is still under investigation.