At least 78 people have been killed in a crush at a school in Yemen’s rebel-held capital, Sanaa, during a charity event for Ramadan, according to officials.
The incident began after hundreds crowded into a narrow street in the Bab al-Yemen area late on Wednesday to get handouts of $9 (£7) from a merchant.
Video showed people screaming for help and others trying to pull them free.
Later footage appeared to show dozens of bodies on the ground, as well as shoes and clothing strewn over steps.
Officials from the rebel Houthi movement accused organisers of failing to co-ordinate with local authorities and said they had been detained.
Yemen has been devastated by a civil war that escalated in 2015, when the Iran-aligned Houthis seized control of large parts of the west of the country from the internationally-recognised government and a Saudi-led coalition intervened in an effort to restore its rule.
The fighting has reportedly left more than 150,000 people dead and triggered one of the world’s worst humanitarian crises, with two thirds of the population – 21.7 million people – in need of some form of aid.
Mr Houthi said the merchant received people via a back gate that was reached by a narrow street and steps. This resulted in overcrowding and a crush when the gate was opened.
He also blamed the Saudi-led coalition for causing an “economic catastrophe” with its military campaign against the rebels and blockade of the country.