Live ducks are seen inside and outside of cages at wholesale market in Shanghai, China

China has reported its third outbreak of bird flu in eight days.

The latest outbreak was reported Wednesday, but detected Saturday. The agriculture ministry says the flu killed 545 chickens and ducks in the central province of Hunan.

The news follows Tuesday's discovery of bird flu in a flock of more than 2,000 chickens and geese in eastern China's Anhui province.

Also Wednesday, Japan announced it was sending more experts and medical equipment to help Indonesia battle the virus.

The virus has killed at least four people in Indonesia and more than 60 people in Asia.

Officials around the world are tightening agricultural controls and pledging cooperation to fight avian flu. Health officials from 30 nations concluded a meeting Tuesday in Ottawa, Canada to discuss the threat.

Some information for this report provided by AP and AFP.