Flags will fly at half-mast across Scotland this weekend as a mark of respect for those affected by the helicopter crash in Glasgow.
St Andrew's Day events in the city have been cancelled and football grounds hosting Scottish Cup ties will observe a minute silence.
First Minister Alex Salmond has asked that saltire and Lion Rampant flags outside Scottish Government and Historic Scotland buildings fly at half-mast over the weekend.
The Scottish Trades Union Congress has called off its annual St Andrew's Day anti-racism march in the city but will go ahead with a planned indoor rally which will now include tributes to those affected by the accident.
STUC general secretary Grahame Smith said: "In light of the tragic loss of life and the current demands placed on all the emergency services involved in the rescue it would not be appropriate for the march to go ahead.
"We plan to hold a short rally in the Glasgow Film Theatre as planned at 12noon where a tribute will be paid to those who have lost their lives".
Glasgow City Council cancelled the Glasgow Loves St Andrew's Day celebrations due to take place in George Square.
A spokesman for the council said: "While emergency services continue in their efforts at the Clutha, we have decided to cancel this afternoon's St Andrew's Day celebrations on George Square as a mark of respect. Our thoughts are with everyone affected at this time."
Scottish Football Association president Campbell Ogilvie: "On behalf of the Scottish FA, I extend my deepest sympathy to the families and friends of those affected by the tragic events in Glasgow. We have advised competing clubs and appointed match officials involved in this weekend's William Hill Scottish Cup ties that it would be appropriate to observe a moment's silence prior to kick-off."
Rangers and Falkirk players wore black armbands during their cup match at Falkirk Stadium.
A statement from Rangers said: "Everyone at Rangers Football Club is shocked and saddened by the tragic helicopter crash at the city's Clutha Vaults bar last night. Our thoughts are with all those affected by this dreadful incident."