Increasing violent clashes continued on Sunday evening between Shiite al-Houthi rebels and Sunni tribal armed men in the northern Yemeni province of Hajjah, leaving at least 30 killed.
"After the short-lived fragile ceasefire agreement has been broken, fierce clashes occurred in Ahm and Kashir districts, Hajjah, leaving at least 30 killed and many others wounded from the two sides," tribal dignitary told Yemen Post.
Al-Houthis have reportedly prevented the tribal mediation members, which was formed of tribal chiefs in the area, from supervising the implementation of the signed agreement, which was struck late last week, stirring up enrage among the chiefs that they accused al-Houthis of not making good on their promises.
Abdullah Wahban, a member in the tribal committee, expressed his regret and sorrow that the ceasefire has been breached by al-Houthis as they carried out some offenses in the past two days on some Sunni-held posts in Ahm and Kashir areas.
"Attacking and preventing the tribal mediation committee from resuming its job comes as an evidence of al-Houthis' usual behavior of not abiding by any agreement, " Zaid Arjash, the official spokesman for the Sunni tribal alliance, said.
"Houthis have reinforced their fighting units in Hajjah with more heavy weapons and professional snipers," Arjash added.
Al-Houthi office has declined to comment on the matter.
The sectarian clashes broke out in Saddah and Hajjah provinces when al-Houthis tried to expand their dominance in the area.
Yemeni government has accused Iran of backing Houthis in 2008, resulting in deterioration of relationships between the two countries.