Nicola Sturgeon said the authorities cannot be sure there are no other Scots affected.
7 Things We Learned From The IndyRef
Here are seven things we learned from last year's Scottish independence referendum:
1. You can lose but still win.
The Yes campaign may have lost the referendum, but in the wake of the vote the SNP has enjoyed unprecedented success. Membership of the party has soared to well over 100,000, it won an unprecedented 56 of the 59 Scottish seats up for grabs in May's general election, and polls for next year's Holyrood election have put support for the SNP at more than the three main unionist parties combined.
2. You can win but still lose.
Labour may have been at the forefront of the successful Better Together campaign, but since the referendum vote support for the party has only been going one way - down. Since September 18, Labour has lost not one but two Scottish leaders, and all but one of its MPs at Westminster. Scottish Labour's latest new leader, Kezia Dugdale, faces a stiff challenge to rebuild the party ahead of the 2016 Holyrood election.
3. You do not have to be in the SNP to support independence.
While independence is the SNP's raison d'etre, there were others who backed Scotland breaking away from the UK, including the Scottish Greens, left wingers from Solidarity and the Scottish Socialist Party and even some Labour members - who set up the Labour for Independence group.
4. A generation is a very vague period of time.
Alex Salmond hailed last year's vote as a ``once in a generation'' ballot. But with support for the SNP on the rise - and a poll recently showing a majority now in favour of Scotland leaving the UK - some in the SNP will want a second referendum sooner rather than later.
5. Gordon Brown may not have saved the world, but he might just have saved the Union.
Back in 2008, a slip of the tongue at Prime Minister's Questions saw Mr Brown say his government had ``saved the world'' - he most likely meant to say ``saved the banks'' - but by playing a key part in setting up ``the vow'' on more powers for Holyrood and by being at his barnstorming best in a speech on the eve of the referendum, he certainly played his part in keeping the UK together.
6. You do not need to get on with your workmates as long as they get the job done.
Labour and the Conservatives managed to put aside their differences and work together in Better Together, the successful cross-party campaign to save the union.
7. The polls are usually right.
Less than two weeks before the referendum, a shock poll gave the Yes campaign a narrow lead. But all the other polls predicted Scotland would stay in the UK. They were right.
Family members say Laura Macintyre and Eilidh MacLeod haven't been heard from since the explosion.
The families of two girls from the Western Isles missing after attending the concert in Manchester targeted in a terror attack have issued appeals on social media.
Crews were called to the former Royal Victoria Hospital site this afternoon.
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