According to the report, it was said that HSBC Holdings had told employees to vacate the 22nd floor of its headquarters at Central district after one of the employees was tested preliminary positive for the virus.

While other employees who worked in the HSBC tower - with a total of 50 floors, were asked to avoid coming back to their offices unless necessary, a memo from the bank wrote.

Over at Credit Suisse, an employee who had recently been to a gym was also tested preliminary positive for the virus, according to sources.

The individual worked on the 91st floor of the International Commerce Centre. The Swiss bank occupies 12 floors within the building in Tsim Sha Tsui, and the 91st floor includes some of its trading activities.

The same building also houses some of the global financial firms including Morgan Stanlet.

The reports also said that T Rowe Price’s central office has been closed for disinfection on Thursday, after a suspected Covid case has emerged.