As Sudan collapsed into fighting last week that has trapped civilians in their city neighbourhoods, cutting off access to water, food and healthcare, community groups, websites and apps have sprung up to mobilise medical help and find basic supplies.
The violent power struggle between the heads of the army and a big paramilitary force, who previously governed together, has killed hundreds of civilians and plunged Sudan into a humanitarian catastrophe, bringing war to the capital Khartoum, which is unused to such violence.
