SANAA, Yemen -- Shiite rebels and their allies in Yemen randomly shelled a town Sunday outside of Aden after losing control of some the port city's neighbourhoods, killing at least 45 people and wounding 120, officials said.
The violence highlighted the bloody chaos of the civil war gripping the Arab world's poorest country, which also has been the target of Saudi-led, U.S.-backed airstrikes since late March.
A leader with the Shiite rebels, known as Houthis, denied shelling Dar Saad, a town just north of Aden and long home to fighters resisting their advances. But Yemeni medical officials and a doctor with an international aid organization said the shelling clearly came from the north and east of Dar Saad -- areas under rebel control.
Aden, the scene of some of the war's fiercest ground battles, saw Saudi-backed troops and fighters seize from the Houthis some of its neighbourhoods and its international airport last week. Sunday's shelling in Dar Saad appeared to be a way to both punish those resisting the Houthis, as well as halt the advance of their opponents.
Yemeni medical and military officials said hundreds of residents fled Dar Saad amid the shelling as ambulance rushed through the streets, sirens wailing. They said the shelling killed at least 45 people and wounded 120, all believed to be civilians.
The officials spoke on condition of anonymity as they weren't authorized to brief journalists.
Abdu Mohammed Madrabi, 65, said he was in line outside the post office to collect his pension when the shells hit, causing chaos. Madrabi, who was wounded in the neck, back and leg, said many private cars carried the wounded to hospitals because there weren't enough ambulances.
The shelling was intense in the neighbourhood of Sharqiya, hundreds of meters from the post office.
"It's been one shell after the other since the morning," said Arwa Mohammed, a resident of Sharqiya locked up in one room with her seven-member family for safety. "We are feeling the house is going to collapse over our head."
Anis Othman, a neighbour of Mohammed, also described a scene of pandemonium.
"Balls of fire are falling over our heads amid the screams of children and women," he said. "Why all that shelling? There are no weapons or fighters here. They (the rebels) want to terrorize us and drive us out. This is only rancour and hate."
Zeifullah al-Shami, a Houthi leader, denied targeting civilians in the shelling, saying his forces were engaging the rivals on the front lines.
"This is part of the media deception," he said. "We didn't kill civilians."
However, the rebels had vowed to retaliate after losing ground in Aden. The rebels now are largely based in Aden's western neighbourhood of Tawahi, as well as bases east of Aden and in Lahj province, north of the city. Saudi-backed fighters also are advancing on a military air base in Lahj province.
Sunday night, anti-Houthi forces linked up in Tawahi from the north and south at the state television building, a Yemeni military official said. He claimed anti-Houthi forces fully controlled the area and said they were searching residences for rebels, some of whom had fled to nearby mountains.
Witnesses and anti-Houthi forces said bodies littered the streets. Locals said loudspeakers were blaring in the streets urging the Houthis to surrender.
In the city of Taiz, Yemen's third largest, fighting raged on the ground, residents said, with a gas facility burning after it was hit. In the capital, Sanaa, satellite channel Ghazal said Houthi militias had stormed its building.
The officials spoke on condition of anonymity as they weren't authorized to speak to journalists, and the residents declined to be identified for fear of repercussions.
The fighting in Yemen pits the Houthis and troops loyal to former President Ali Abdullah Saleh against southern separatists, local and tribal militias, Sunni Islamic militants and loyalists of exiled President Abed Rabbo Mansour Hadi, who is now based in Saudi Arabia.
The rebels seized Sanaa in September. Fierce fighting in Aden broke in March, sparking the Saudi-led airstrikes. More than 3,000 people have been killed since, including more than 1,400 civilians, according to United Nations agencies.
The conflict has left 20 million Yemenis without access to safe drinking water and uprooted more than 1 million people from their homes, the U.N. has said.
Hassan Boucenine, the head of Doctors Without Borders in Yemen, called the situation in Dar Saad "very, very difficult." He said his medical facilities had received 50 wounded people and 25 corpses.
"There will be more," he said.
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Associated Press writer Sarah El Deeb in Cairo contributed to this report.
