Terror suspect Najibullah Zazi has been indicted on a charge of conspiring to detonate bombs in the United States.
Zazi is to appear Thursday in court in Denver on a count of lying to terrorism investigators. The new charge of conspiracy to use weapons of mass destruction was filed in New York.
The two-page indictment offers few details, but a separate document – a government motion seeking to deny bail to the 24-year-old Afghan immigrant – lays out evidence gathered by investigators.
The document says that on Sept. 6 and 7, Zazi tried on multiple times to communicate with another individual "seeking to correct mixtures of ingredients to make explosives."
"Each communication," the papers say, was "more urgent than the last."