A Nashville, Tennessee woman - believed to be behind 17 bomb and anthrax threats - has been charged with making a bomb threat.

The 47-year-old woman faces up to 10 years in prison and a $250,000 fine is she is convicted on the charge.

Shortly before her arrest, federal investigators say they followed Piettia Heifner York through a shopping mall and several other public places. An agent with the Federal Bureau of Investigation found a letter in a mall bathroom saying bombs had been planted at the mall.

The woman was arrested Friday. The arrest follows a tense three weeks in which 16 bombs threats were left in public places around Nashville and mailed to the chief of police.

Additional charges may be filed.

Some information for this report provided by AFP.