The Western Isles has dropped out of the race to be the first Scottish constituency to announce its general election result.
A switch from a fast powerboat to a slower vessel to transport two ballot boxes from Barra and Vatersay has pushed back the declaration time by up to 90 minutes to between 2.30am-3am.
Results will be announced in other seats such as East Kilbride, Strathaven, Glenrothes, Kirkcaldy, and Lanark, as well as in numerous English constituencies, well before then.
A spokesman for Western Isles returning officer Malcom Burr said: “The operator transporting the ballot boxes over the Sound of Barra will be using a different boat than originally intended and the crossing will take longer.
“This will have a knock-on effect on the timings and the declaration is now expected between 2.30am-3am.”
After being landed by the boat, the boxes from Barra and Vatersay will be transported by van and driven to a central gathering point in Benbecula.
All the Southern Isles boxes will be transferred on to a chartered aircraft at Balivanich and flown to Stornoway.
The Western Isles has an electorate of 21,769, with nearly a fifth of voters applying for a postal vote.
In 2010, the SNP won with an 1,885 majority. This time, Labour’s Alasdair Morrison is trying to seize the seat from the Nationalists’ Angus MacNeill.
Other candidates are the Scotgtish Conservatives’ Mark Brown, Liberal Democrat Ruaraidh Ferguson, and John Cormack of the Scottish Christian Party.