Chinese city on lockdown as mysterious virus rages

A sense of anxiety is growing in Wuhan as the Chinese city goes into lockdown in an effort to control the spread of a deadly virus which has left 17 dead.

The authorities have suspended outbound planes and trains into the city, as well as buses, subways and ferries.

Residents have been told not to leave the city of 11 million people.

There are more than 500 confirmed cases of the virus which has spread overseas.

The first US case was confirmed on Tuesday.