Saudi-led warplanes launched dawn raids Saturday on Yemen's southern port city of Aden, the military said, hours after peace talks in Geneva ended without agreement.
At least 15 airstrikes rocked the northern, eastern and western approaches to Aden, said a pro-government military source.
The violence came hours after the UN's special envoy for Yemen, Ismail Ould Cheikh Ahmed, announced Friday in Geneva that talks between the warring sides failed to clinch a deal, or even agree on temporary truce, AFP reported.
"I won't beat around the bush. There was no kind of agreement reached," the Mauritanian diplomat told reporters in the Swiss city.
A Saudi-led coalition of Arab countries has carried out airstrikes on Yemen since March 26 to restore the country's fugitive president Abd-Rabbuh Mansour Hadi to power and repel Houthi forces.
Aid groups and the UN say a dire humanitarian crisis is unfolding, and have appealed on all sides to stop fighting to allow them to move supplies to Yemen and distribute them to the needy.
The situation is particularly tragic in Aden, where residents have complained of food and water shortages, while medics speak of a rapidly deteriorating health situation and the spread of disease.
Car Blast in Sanaa
Also on Saturday, a car blast near a mosque in Yemen's capital killed at least two people and injured six.
Saturday's explosion in Sanaa, which is under the control of Houthi forces, went off outside the Kobbat Al-Mehdi mosque as Shia Muslims emerged from midday prayers, witnesses and security sources said.
Islamic State claimed responsibility for the attack, writing in a statement published on militants' Twitter accounts.
The bombing caused damage to the entrance of the mosque and shattered the windows of a nearby house, witnesses reported.
According to UN estimates, 2,288 people have died as a result of Saudi Arabian airstrikes, half of whom are civilians. Another 9,755 are reported to have been wounded. UNICEF stated in late May that 135 children had been killed and 260 wounded since the start of the conflict in March.
