Indonesian president sued over congested capital's air pollution

Environmental groups has sued Indonesian president, Joko Widodo and several government officials on Thursday (July 4) over worsening air quality in the capital, Jakarta, one of the world's most congested cities.

Jakarta is consistently ranked among the top 10 most polluted cities in the world, according to Air Visual, a Swiss-based group that monitors air quality.

Pollution levels in the city of over 10 million have spiked in recent weeks to nearly five times the level recommended by the US Environmental Protection Agency (EPA). 

"We are suing the government so they will investigate where the pollution comes from and take actions based on their findings," climate campaigner Bondan Andriyanu told journalists at a central Jakarta district court.