A new development on the suspicious letter mailed to Santa Clara's Muslim Civil Rights organization.
Someone mailed a threatening letter to the Council on American-Islamic Relations (CAIR).
The letter was filled with a white powder.
Authorities shut down the office and evacuated employees.
KTVU has learned no injuries have been reported, and it appears the substance was benign.
The same thing happened in Washington, D.C.
Tests on that substance indicated it was not dangerous either.
The FBI continues to investigate the two incidents, with cooperation from local authorities.