Swedish climate activist Greta Thunberg has been arrested by Dutch police at a protest in The Hague.

The 21-year-old joined hundreds of protesters in a march against fossil fuel subsidies on Saturday.

The protest devolved into a standoff as dozens of police officers, some on horseback, attempted to stop protesters from blocking a main road.

Local police put Ms Thunberg on a bus full of demonstrators and she was driven away from the scene.