China's Wuhan says conducted 856,128 COVID-19 tests on Tuesday

The city of Wuhan, the original epicentre of China's coronavirus outbreak, conducted 856,128 tests for the disease on Tuesday, the local health authority said on Wednesday, compared with 467,847 a day earlier.

Wuhan kicked off a campaign on May 14 to look for asymptomatic carriers - infected people who show no outward sign of illness - after confirming on May 9-10 its first cluster of COVID-19 infections since the city's lockdown was lifted on April 8.