Houthi forces on Monday made field advance in their war against Hajoor tribes in Cashir District, local source told Debriefer, in the northwestern governorate of Hajjah bordering Saudi Arabia.
"Houthis took control over a number of site in the strategic al-Abeesah area of Cashir," the source added on condition of anynomity for security reasons, after the rebels "had held al-Qiam Mont, overlooking Abeesah, in addition to al-Hadateen area, al-Mansoura Mont and other areas in the district, in bloody battles during the last two dayswith Houthis having used different types of weapons."
Houthi rebels "intensively use Katyusha and other modified rocketsas well as mortars, tanks and armored vehicles, while the tribesmen use light and medium arms, giving Houthis an advantage" over tribes.
Houthi intense shelling "has left huge destruction in civilians' houses, displacing hundreds of families into safer areas inside and outside the district," said the source adding that Houthis "continue the tightened siege on Hajoor and cut communication and web networks more than a week ago."
"Hajoor tribal areas would fall into Houthi hands within days if the rebels' fierce assault kept in such a way, especially with the weak air support from the Saudi-led coalition warplanes and the legitimate government's failure to back the tribes," warned the source.
"Hundreds of Houthis and tens of tribesmen were killed or injured throughout the last ten days."
Houthis have started a widespread offensive since last January on Hajoor tribal areas, amid strong resistance by tribesmen who had repelled rebel control, with Saudi-led coalition warplanes backing the tribes by periodic strikes on Houthi reinforcements and equipment.
Houthi forces could not take full control over Hajoor tribal areas, despite the rebel siege of the district and their large masses that opened new fronts with tribesmen fortified in rugged mountains.
Yemen has been racked by an armed conflict that broke out after the Iranian-backed Houthis had ousted the internationally recognized government late in 2014, leaving tens of thousands killed, hundreds of thousands injured, and 3 million displaced.
Yemeni Vice-president Ali Muhsin al-Ahmar,at his meeting on Tuesday with the UN Envoy Martin Griffiths, urged the UN to "pressure Houthi militias into ending siege imposed on Hajoor and their crimes against Yemenis across Yemen."