The trial in absentia of Iraq's most wanted fugitive, Abu Musab al-Zarqawi, and 12 other terror suspects has opened in the Jordanian capital, Amman.

Jordanian-born al-Zarqawi - the acknowledged mastermind behind scores of terror attacks in Iraq - is being tried in absentia, along with three of the 13 defendants.

Fugitive Zarqawi, 12 Other Terror Suspects Go on Trial in Jordan

Prosecutors accuse al-Zarqawi and most of the others of plotting to launch suicide chemical attacks inside Jordan. Shortly after the trial opened Wednesday, nine defendants present in the courtroom brought proceedings to a standstill when they refused to answer routine questions from military judges.

Fugitive Zarqawi, 12 Other Terror Suspects Go on Trial in Jordan

The court adjourned the case until December 22. If convicted, 12 of the defendants, including al-Zarqawi, could be sentenced to death. A 13th defendant has been charged with the lesser crime of aiding two of the fugitives.

Fugitive Zarqawi, 12 Other Terror Suspects Go on Trial in Jordan