(CNN) – US border officers working at Canadian border crossings were directed to stop travelers of Iranian descent for questioning following the killing of Iranian Gen. Qasem Soleimani, an unnamed Customs and Border Protection officer alleged in an email to an immigration attorney. An email sent to immigration attorney Leonard Saunders by a Washington state CBP officer tells a different story. The officer's email was first reported by CNN news partner CBC and provided to CNN by Saunders, who did not reveal the officer's name. A former CBP officer told CNN the person who wrote the email worked with him at the agency and was told by current CBP officers that the individual is still an active officer at the Blaine border crossing. "I just know him as an experienced CBP officer," the attorney said.