FBI: Man sent hundreds of hoax letters with powder

DALLAS (AP) — Federal authorities have arrested a Texas man accused of sending more than 500 hoax letters that contained a white powder to schools, U.S. government offices and other locations around the world.

Hong Minh Truong made his initial appearance in Dallas federal court on Monday following his arrest earlier in the day.

The 66-year-old is charged with false information and hoaxes. Federal authorities say none of the letters Truong is accused of sending since 2008 contained toxins or poisons.

A judge ordered that Truong be held in custody until a detention hearing on Aug. 4.

Truong's attorney did not immediately return a call on Monday.

Diego Rodriguez, special agent in charge of the FBI's Dallas office, says dealing with the letters cost taxpayer dollars and diverted first responder resources.

©2014 by The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.