DENVER (AP) -- Authorities say someone threatened to blow up airports, airplanes, a hotel and the jail where the Colorado theater shooting suspect is being held unless the suspect is freed, but the threats were considered hoaxes.
The Denver Post reported Wednesday the threats are detailed in federal court records.
Federal agents are looking for a suspect. A spokesman for the U.S. attorney in Denver says no arrests have been made.
Records say the threats were made in emails and telephone calls made via the Internet, and that the email account used was traced to Internet addresses in Iran.
A telecommunications company spokesman says the origin of such calls can be disguised.
James Holmes is jailed on murder and attempted murder charges. The July 20 shootings killed 12 and injured 70.