Health authorities suspect that an infected cooling tower may be responsible for an outbreak of Legionnaires disease around Town Hall station.

Three men aged in their sixties and one in his 30s are receiving treatment for Legionnaires disease in hospital after they spent time in the Druitt, Market, Sussex and Pitt street areas.

Three of the patients work in the area and one was visiting.

The bacterial lung infection causes fever, chills, a cough and shortness of breath, and can be fatal.