Four Yemenis have been convicted of forming an al-Qaida cell to attack government and foreign targets in the country. They received prison sentences of between two and seven years, AP reported.
The court said Tuesday that the four cell members included a 15-year-old and that they received weapons and ammunition.
The court also said the group wanted to avenge the killing of senior al-Qaida leader Hamza al-Kaaiti, who masterminded a March mortar attack outside the U.S. Embassy and other attacks.
As the verdict was read, one of the defendants shouted that Yemeni President Ali Abdullah Saleh was an "agent of the Crusaders" and vowed to take revenge.