WHO coronavirus investigators arrive in Wuhan

The group arrived late in the morning on a budget airline from Singapore and was expected to head into two weeks of quarantine.

The team left the airport terminal through a plastic quarantine tunnel marked "epidemic prevention passage" for international arrivals and boarded a cordoned-off bus that was guarded by half a dozen security staff in full protective gear.

Team members did not speak to reporters, although some waved and took pictures of the media from the bus as it departed.

The team arrived as China battles a resurgence of cases in its northeast after managing for months to nearly stamp out domestic infections.