Prime Minister John Key and Labour leader David Cunliffe are expected to be among those attending today's public memorial service dedicated to the victims and survivors of the shootings at the Work and Income office on Monday last week.
Hundreds of Ashburton people are expected to turn out for the civic service at 12.15pm in the Mid-Canterbury town's Baring Square East.
The 45-minute service, organised by the Ashburton District Council and the Ministers' Association, is open to anyone who wishes to pay their respects and remember the lives of slain Work and Income workers Peg Noble and Leigh Cleveland.
The council is closing its offices for an hour to allow staff to attend.
Mayor Angus McKay said some shopkeepers had indicated they would also shut for it.