BBC:
Jakarta, home to over 10 million people, is sinking at one of the fastest rates in the world.*Previously: "Jakarta's violent identity crisis: behind the vilification of Chinese-Indonesians"
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The idea of moving the capital has been floated several times since the country gained independence from the Dutch in 1945.
In 2016, a survey found that the mega-city had the world's worst traffic congestion. Government ministers have to be escorted by police convoys to get to meetings on time.
The planning minister says snarl-ups in Jakarta costs the economy 100 trillion rupiah ($6.8bn, £5.4bn) a year.