Scotland's First Minister Alex Salmond has told ITV News the Jim Clark Rally crash that left three people dead and two others critically injured was "an extraordinary incident of great severity".
Mr Salmond said: "These are tragic circumstances and obviously all our hearts go out to the people who have been killed and injured.
"Given the extent of this tragedy, people can be reassured the [investigation] process will be complete and thorough".
More top news
Ever wondered what the most expensive seaside town in Britain is? Find out here.