No hazardous substances detected in suspicious mail sent to Sen. Ted Cruz's office

Ted Cruz
Ted Cruz (Justin Sullivan/Getty Images)

HOUSTON – Firefighters said no hazardous substances were detected in a suspicious piece of mail that was delivered to Sen. Ted Cruz's Houston office Tuesday.

The Houston Fire Department temporarily evacuated the ninth floor of Phoenix Tower after a piece of mail containing a white, powdery substance was delivered to Cruz's office, KPRC-TV reported.

Firefighters said two people were taken to the hospital after being exposed to the substance.

Authorities reopened the ninth floor of the building after conducting a brief investigation.