China has lifted a poultry export ban on a region of Inner Mongolia that suffered an outbreak of bird flu last month, state media reported.

Authorities had slapped the ban on the Jiuyuan district of Baotou city, after about 1,000 chickens and ducks died suddenly on a poultry farm there.

About 30,000 fowl were subsequently slaughtered. No new cases of bird flu were reported since, Xinhua news agency reported.

There have been 40 officially reported outbreaks of the potentially deadly bird flu in China since October last year.