Crews fought a fire inside an apartment in Downtown Seattle early Tuesday, causing residents to spill out onto the street.

At 3:30 a.m., crews were called to the building in the 1400 block of Madison Street. A fire was found inside a fourth-floor unit.

When firefighters arrived, the flames were under control, thanks to the building’s sprinkler system, according to the Seattle Fire Department. Crews put out the remaining fire.

No one was hurt.

The cause of the fire is under investigation.