Five civilians including a child have been killed after their home was destroyed in a bombardment near the strategic rebel-held Red Sea port of Hodeida, the latest violence in Yemen’s grinding civil war.

The war in Yemen is turning the impoverished country into an "unviable state" that will be almost beyond repair, a top UN official warned ahead of a donor conference aimed at averting a famine.

Supporters of the Yemeni Huthi rebels take to the streets of the rebel-held capital Sanaa to protest against the blockade imposed on their country by the Saudi-led military coalition.

The amount pledged ended up being less than half what was targeted. With humanitarian groups hoping to avoid a devastating famine, UN Secretary-General Guterres warned: "Cutting aid is a death sentence."

Smoke billows over Sanaa as a Saudi-led military coalition mounts airstrikes on Yemen's Huthi-controlled capital after it intercepted 10 drones launched by the Iran-backed rebels.

Protesters have reportedly withdrawn peacefully from the palace, where the cabinet is installed, after negotiations with the police.

With its lush landscape, distinctive trees, unique animals and turquoise waters home to dolphins, Yemen is hoping its Socotra archipelago will become a dream destination despite the country's nightmarish conflict. Lying in the Indian Ocean some 200 kilometres (120 miles) off the Yemeni coast, the four islands and two rocky islets home to some 50,000 people have remained relatively untouched by the war that has devastated the mainland.

Fighting between pro-government and Huthi rebel fighters takes places at the Al-Kasarah frontline in Marib, with missiles and machine guns being fired. Fierce fighting for Yemen's strategic Marib city has killed 70 pro-government and Huthi rebel fighters over the past 24 hours, with battles raging on three fronts.

Surrounded in mystery and tales of demons, the Well of Barhout in Yemen's east -- known as the "Well of Hell" -- is a little-understood natural wonder. Closer to the border with Oman than to the capital Sanaa 1,300 kilometres (800 miles) away, the giant hole in the desert of Al-Mahra province is 30 metres wide and thought to be anywhere between 100 and 250 metres deep.

Clashes between rebels and Yemeni government fighters take place at Marib's Al-Kassara frontline in Yemen, following a renewed offensive by Huthi insurgents.

In Yemen, families send their children to so-called summer camps. There, adolescents are given combat training and taught why they should fight for God. Both government forces and Houthi rebels use child soldiers.

Dozens of Yemeni cyclists hit the road with a shared goal: to spread peace in a country that has been embroiled in conflict for more than seven years. In the capital Sanaa, the cyclists prepared for their 320-kilometre (200-mile) journey to the northern province of Saada, one of the areas devastated by the ongoing war between the government and the Huthi rebels.