The UN has condemned an airstrike by the Saudi-led coalition in Yemen that killed at least 22 children and four women.
They were killed in a strike in the Al Durayhimi district in Hudaydah city.
According to the UN, those killed are said to have been fleeing fighting in the area.
A separate airstrike in the area on Thursday is said to have left four children dead.
Both attacks come only weeks after an airstrike hit a bus in Yemen, leaving dozens - including children - dead.
Mark Lowcock, the UN's humanitarian chief, has called for an 'impartial, independent and prompt' investigation into all the incidents.
He said: "I am also deeply concerned by the proximity of attacks to humanitarian sites, including health facilities and water and sanitation infrastructure.
"The parties to the conflict must respect their obligations under international humanitarian law and those with influence over them must ensure that everything possible is done to protect civilians."
'Sham investigations'
Separately, the Human Rights Watch charity has said the coalition's efforts to investigate alleged war crimes in Yemen 'lack credibility and fail to provide redress to civilian victims'.
In a report, the organisation accused the coalition's internal investigation team's work as having "fallen far short of international standards regarding transparency, impartiality, and independence".
HRW's Sarah Leah Whitson said: “Governments selling arms to Saudi Arabia should recognise that the coalition’s sham investigations do not protect them from being complicit in serious violations in Yemen.”
Mourners attend a mass funeral of victims, mainly children, of a airstrike by the Saudi-led coalition fighting Shiite rebels in Saada, northern Yemen, 13 August 2018. Picture by: Hani Al-Ansi/DPA/PA Images
Fighting between Iran-backed Houthi rebels and the ousted Yemeni government – supported by the Saudi-led coalition – has been ongoing in the region for three years, prompting a catastrophe that the UN has described as the world's worst humanitarian crisis.
The US is among the countries backing the Arab coalition - through arms sales, intelligence and military support.
CNN has reported that the bomb used in the deadly airstrike earlier this month was supplied by the US.
