At least 11 people were killed in Houthi missile and drone attacks on Yemen's Red Sea port city of Mokha on Sunday, as the Iran-backed group also struck Saudi oil infrastructure amid a sharp escalation along the western Yemeni coast.
A medical source in Mokha told AFP that three civilians and eight military personnel were killed in the attacks, while another 32 people were wounded, including six civilians.
The source said all of the civilian casualties resulted from strikes on Mokha port, which is controlled by forces aligned with Yemen's internationally recognised, Aden-based government.
Two military sources from government forces separately told AFP that at least eight troops were killed and more than 40 military personnel wounded.
Earlier Yemeni government media reports had put the death toll at seven and the number of wounded at around 35.
Abdulmalik al-Sharabi, director of Mokha port, said the Houthis attacked the facility with around 25 drones, striking economic facilities, housing for port employees and a customs hangar.
Al-Sharabi told local media that the attacks were still ongoing at the time of his remarks and that authorities were assessing the scale of damage to the port.
Yemeni media reported extensive damage to the port's infrastructure and said a number of workers had been wounded.
The Houthis' military spokesman Yahya Saree said the group had targeted "Saudi enemy" troops and equipment in the Mokha area with missiles and drones.
Military sources with the Aden-based government said Mokha had been hit by several waves of missile and drone attacks.
One source said the Houthis also targeted pro-government forces and installations outside the city, as well as positions on islands near the Bab al-Mandab Strait, the strategic shipping chokepoint linking the Red Sea with the Gulf of Aden.
Some of the targeted sites housed Saudi troops, according to the source, although no Saudi military casualties were reported.
Residents described repeated explosions over Mokha and its port. One told AFP they "heard explosions from drones and air defences over the port and city", while another reported hearing "six consecutive explosions" at the port.
In a separate attack, Hodeidah governor Hassan Taher, appointed by the internationally recognised government, survived a Houthi ballistic missile strike near his residence in Al-Khokha, south of Hodeidah province, according to Yemeni government media and a local source.
The missile landed near Taher's home, with no immediate reports that the governor had been injured.
The attacks came after the Houthis earlier on Sunday struck an oil facility operated by Saudi state energy giant Aramco in Jazan on Saudi Arabia's Red Sea coast.
Saudi Arabia's energy ministry said a fire at the facility had been extinguished.
Saree said the attack was carried out in response to what he described as incursions by Saudi drones into northwestern Yemen.
The renewed fighting comes after a years-long lull in Yemen's civil war appeared to unravel last month amid wider hostilities between regional allies of Iran and the United States.
The UN-backed truce agreed in 2022 had significantly reduced fighting between the Houthis and the Saudi-backed Yemeni government, but began to unravel last month as US and Israeli hostilities against Iran and their allies spread across the region.
The Houthis have since announced a maritime blockade of Saudi Arabia and targeted Saudi-linked shipping and oil infrastructure, while portraying their attacks as responses to Saudi military activity, including alleged drone incursions into northwestern Yemen.
The fighting has unfolded alongside Iran's blockade of the Strait of Hormuz in retaliation for the US and Israeli was against the country launched in February.
Mokha and nearby Al-Khokha sit on a strategically important stretch of Yemen's Red Sea coast near Bab al-Mandab, the shipping chokepoint linking the Red Sea with the Gulf of Aden.