The air quality in Australia's East Coast city of Sydney plummeted to levels comparable to New Delhi, the Indian capital and one of the world's most polluted metropolises.

Sydney and Delhi’s air quality on par after Duck Creek, Pilliga Forest bushfire

Sydney comes to a standstill as thousands take to streets for Climate change protest

Bushfires fanned by winds combined into a single giant blaze north of Sydney late on Friday, blanketing Australia's biggest city in hazardous smoke, causing weekend sports games to be cancelled and prompting calls for outdoor workers to stay home.

Fears grow about Sydney after Australia fires merge into giant blaze

Protesters in smoke-covered Sydney kicked off a fresh round of global protests against climate change on Friday, with activists and schoolchildren picketing the headquarters of bushfire-ravaged Australia's ruling party.

Climate protests kick off in smoke-covered Sydney