Hong Kong has confirmed its first case of the new strain of the H7N9 bird flu in a domestic worker from Indonesia.

The worker, 36, recently travelled to Shenzhen in the mainland and came into contact with live poultry. She is in critical condition, officials say.

H7N9 has infected more than 100 people since it emerged earlier this year.

Hong Kong has suspended the import of live chickens from some China farms

The case in Hong Kong is a sign that the virus may be spreading beyond mainland China, where most infections have been reported, and Taiwan.

The World Health Organization (WHO) had said there was "no evidence of sustained human-to-human transmission", but also described H7N9 as an "unusually dangerous virus".

At least 139 human cases of H7N9 have been confirmed, including 45 deaths, WHO says in a statement dated 6 November.

At least one case was confirmed in Taiwan in April.

(Source: BBC)