NEW YORK: The U.S. government has not found a "shred of evidence" that a Pakistani woman accused of trying to kill a U.S. soldier and FBI agents Dr. Aafia Siddiqui was abducted or tortured in the five years before her arrest, a prosecutor said Wednesday.

Assistant U.S. Attorney David Raskin said U.S. agencies had searched for evidence to support reports that Aafia Siddiqui was detained in 2003 and held for years, but found none.

He said it was more likely that Siddiqui disappeared in 2003 because she went into hiding after marrying an al-Qaida operative who helped facilitate the terrorist attacks of Sept. 11, 2001, and because she knew 9/11 mastermind Khalid Sheik Mohammed.

"A more plausible inference is that she went into hiding because people around her started to get arrested and at least two of those people ended up at Guantanamo Bay," Raskin said.

Raskin said the United States responded to repeated allegations in published reports and found "zero evidence that Aafia was abducted, kidnapped, tortured, anything we hear repeatedly."

He added: "I have found not a shred of evidence those allegations are true."

Raskin spoke at a hearing Wednesday to discuss a psychologist's conclusion that Siddiqui, 36, is mentally unfit for trial. She is being held at a Texas facility after she was brought to the United States in August to face attempted murder and assault charges.

Although the psychologist's report is secret, defense lawyer Elizabeth Fink gave an indication of its contents Wednesday when she said Siddiqui believes she is living with two of her children.