TORONTO - Lawyers fighting Abdullah Khadr's extradition began closing arguments Wednesday by saying evidence against him was obtained under torture.

The Ottawa-born Khadr, 28, is wanted in the United States for allegedly buying weapons for al-Qaida.

He was arrested in Toronto shortly after returning from Pakistan, where he had spend 14 months in detention.

He was taken into custody in Pakistan following a US$500,000 bounty American intelligence agents placed on him.

Khadr has been in jail in Toronto since December 2005.

The Crown is expected to make its case on Thursday.