Nicola Sturgeon said the authorities cannot be sure there are no other Scots affected.
Revellers Arrive For T In The Park
The T in the Park music festival gets under way today as thousands of music fans descend on its new home.
Kasabian, David Guetta, Sam Smith and Mark Ronson are just some of the names appearing on the opening day of the festival which is taking place at the Strathallan Castle estate in Perthshire for the first time this year.
Organisers expect 85,000 people a day at the three-day event with the likes of Avicii, Stereophonics, The Libertines, James Bay and Noel Gallagher's High Flying Birds all on the line-up.
Fans laden with rucksacks and tents began arriving at the campsite when it opened yesterday.
Organisers DF Concerts struck a deal to shift the 2015 festival following health and safety concerns about an underground oil pipeline at Balado, where it had been held for 18 years.
Local councillors approved the plan in May despite opposition from some residents and environmental groups who expressed concern for ospreys at Strathallan.
Concerns were also raised about traffic arrangements for the event, and the potential for anti-social behaviour.
The festival runs until Sunday, with The Prodigy, Idlewild, The Script, Twin Atlantic and The Proclaimers also set to perform.
Organisers said they hope fans will enjoy the event's new setting.
Festival director Geoff Ellis said: ''We're starting a new chapter for the festival at Strathallan and creating brand new memories for thousands of music fans.
''We have the UK's best line-up and there's no doubt it will be the weekend of the summer.
''My message to fans when they get here is to respect the site, look after yourself, your friends and your camping neighbours - and most of all, have a fantastic time.''
The estate, which dates back to the 13th century, is owned by the Roberts family who say staging the event will allow improvements to be made to the area.
They also believe it will give tourism and businesses in the region a boost.
Festival-goers are advised to bring both sun cream and wellies as a mixture of sun and rain is forecast for the next few days.
The maximum temperature forecast for Friday and Saturday is 18C, while for Sunday it is 17C.
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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