A man has been critically injured in a fall while working on the demolition of Christchurch's Grand Chancellor Hotel.
The hotel in the central city had stood at 28 storeys but was damaged in the earthquake in February last year and some floors have been removed during work that began this week.
The man is employed by Fletcher Construction and was working on what is now the top storey - the 24th floor - of the building on Friday.
Fletcher's chief executive of construction Graham Darlow says he does not know exactly how far the man fell, but understands it was several metres.
Mr Darlow says the company is very concerned about the man's welfare and that of his family and is doing all it can to support them.
He says bringing down the hotel is a very complicated job and a huge amount of effort has gone into planning and trying to ensure it is as safe as possible.
A Christchurch Hospital spokesperson says the man is in a critical condition and that is not expected to change on Friday.