Update: CAIR Offices Cleared After Suspicious Substance Found Not Dangerous

(Updated at 3:30 p.m.) The suspicious substance that was found at the Council on American-Islamic Relations earlier today was found to be not dangerous and has been handed over to the FBI, according to D.C. Fire and EMS.

Employees are now being allowed back into the building now that the substance has been handed over.

UPDATE: 400blk of New Jersey Ave SE. results negative. hazmat unit conducts decon. https://t.co/s8bRQdikNv

— DC Fire and EMS (@dcfireems) December 10, 2015

Employees of the Council on American-Islamic Relations had to evacuate their Capitol Hill office earlier after receiving a suspicious envelope containing powder.

The envelope was discovered just after noon today, at which point the office at 453 New Jersey Ave. SE was evacuated.

Several employees were exposed to the powder and were quarantined while hazmat officials tested the substance.