A fire alarm evacuated people from Philadelphia’s City Hall Wednesday morning.
NBC10 crews on the scene said the alarm went off around 9:45.
People could see seen streaming out of the building and NBC10 cameras captured Mayor Michael Nutter outside the historic building as firefighters responded to the scene.
After a little more than 30 minutes, people began to re-enter the building.
Firefighters didn’t reveal the cause of the alarm.
