Fighters loyal to rebel leader Abdul-Malik al-Houthi clashed with the tribe members and the Yemeni army, leaving four troops wounded, the source told Reuters.
Clashes that raged overnight were continuing, the source added.
Hundreds of people have been killed and thousands have fled their homes in Saada since the conflict between Houthi rebels and forces of the United States-allied government broke out in 2004.
Yemeni officials say the rebels want to return to a form of clerical rule prevalent in the country until the 1960s. But the rebels say they are defending their villages against what they call government aggression.
Sunni Muslims make up the majority of Yemen's 19 million population, while most of the rest, including Houthi and his supporters are from the Zaydi branch of Shi'ite Islam.
Houthi's supporters oppose Yemen's alliance with the United States.
Last Mod: 29 Nisan 2008, 16:22