The Portalis building, which houses the Brussels prosector's office, was evacuated around 12:15 PM on Tuesday after the fire alarm went off due to a slice of burnt bread.
"The smoke was probably caused by a burnt slice of bread left in a toaster," said Walter Derieuw, the spokesperson for the Brussels fire brigade, reports Bruzz.
The fire alarm went off due to a slight development of smoke. Not a lot of staff members were present, but about twenty people were evacuated, reports De Standaard.
The intervention has ended, and work has been resumed.
The Brussels Times