Indonesia votes in its biggest ever election, nearly 300 arrested in climate change protests in London, and other news in pictures

Indonesians began voting in the world’s biggest single-day election on Wednesday as polling stations opened across the sprawling equatorial archipelago following a six-month campaign to choose a new president and parliament.

The eight-hour vote across a country that stretches more than 5,000 km (3,000 miles) from its western to eastern tips is both a Herculean logistical feat and testimony to the resilience of democracy two decades after authoritarianism was defeated.

President Joko Widodo, a furniture businessman who entered politics 14 years ago as a small-city mayor, is seeking re-election against former general Prabowo Subianto, whom he narrowly defeated in the last election, in 2014.