Investigators are trying to determine what sparked a fire inside a multifamily home in Yonkers.

"I've never seen so much law enforcement, ambulances and fire trucks on my block," says Yonkers resident Jay Boyd.

It happened around 12:45 p.m. Thursday in the 20 block of Van Cortlandt Park Ave.

"It was mad smoke everywhere, a bunch of people in the street, families waiting outside," Qualeek Earl tells News 12.

Officials say the fire happened in the space between the ceiling and roof of the top floor.

Fire crews were able to quickly get it under control.

Officials say the building has multiple units inside.

Some residents were home when the fire happened. They were able to evacuate without being seriously injured, according to officials.

Fire crews tell News 12 there is water damage inside the building. Residents are not able to return until that's cleaned up.

"I try not to worry, what's that going to do for me? Stay calm for now and just wait until I go back home," says Edwin, who lives in the building where the fire happened.

The Red Cross is helping the impacted residents.

There's no current word on a possible cause of the fire.