An Internet campaign that uses the power of celebrity to raise awareness about the unprecedented scale of the world’s crises has already proved a hit ahead of World Humanitarian Day, the UN said Thursday.

With the help of stars such as tennis champion Maria Sharapova and Colombian singer Juanes, UN humanitarian agency OCHA says its #ShareHumanity campaign has already reached out to a new online public.

The campaign works by celebrities - and their fans - sharing stories from trouble-spots around the world, as OCHA spokesperson Jens Laerke told Daniel Johnson.

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