Yemen's Shiite militia sent reinforcements south and clashed with local fighters today after the United Nations warned the country is on the brink of a protracted civil war.
Security sources said the militiamen, known as Huthis, had sent several thousand troops south and fought with local Sunni tribes as they approached the main southern city of Aden, where President Abedrabbo Mansour Hadi took refuge after fleeing the capital last month.
On Sunday the militia seized the airport and a nearby military base in Taez, Yemen's third-largest city which is just 180 kilometres (110 miles) north of Aden and seen as a strategic entry point to Hadi's southern refuge.
Mounting unrest in the country, including suicide bombings claimed by the Islamic State group that killed 142 people in the Huthi-controlled capital Sanaa on Friday, have raised international concerns and prompted an emergency session of the UN Security Council on Sunday.
"(Recent events) seem to be leading Yemen to the edge of a civil war," Benomar told the meeting by video link from Qatar, warning of a protracted crisis like "a Libya-Syria combined scenario."
The Huthis moved to expand their reach in the south after taking the airport in Taez, security sources said, and had pushed toward Aden but two convoys were forced to turn back after overnight clashes with tribesmen.
It was not immediately clear how many Huthis or tribesmen may have been killed or wounded in the clashes near Al Abd, about 40 kilometres (25 miles) from Taez, and Al-Maqatara, about 80 kilometres (50 miles) from the city.
The reinforcements took over schools in the area and set them up as barracks, the sources said.
Militia chief Abdulmalik al-Huthi in a televised speech on Sunday called for his supporters to mobilise for an offensive in the south, condemning Hadi as "a puppet in the hands of forces of evil, led by the United States".
Western countries and Sunni Arab Gulf monarchies have backed Hadi as the country's legitimate ruler.
'Increase in Journalist Arrests'
Yemen has been a key US ally in the fight against Al Qaeda by allowing Washington to carry out drone strikes against jihadists on its territory.
Washington announced on Saturday it was evacuating its remaining personnel from the country, underlining fears in the West of growing instability.
The forces allied with the Huthis include members of the former central security force, a unit seen as loyal to ex-president Ali Abdullah Saleh.
Saleh was forced from power in early 2012 after a year-long popular uprising and has been accused of working with the Huthis to restore his influence.
The militia have been accused of maintaining a tight grip on areas under their control, with Human Rights Watch today saying the group had increased attacks against journalists, including arrests and alleged torture.
"There has been an increase in arbitrary arrests and violence against journalists and other media workers by (the Huthis)," the New York-based group said in a statement.
The Huthis reportedly killed one protester in Taez on Sunday when they fired on thousands of people demanding they withdraw.
Local activists said several thousand residents again took to the streets today for a protest outside a camp of pro-Saleh fighters in Taez.
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