The widower of a British woman killed in a Russian plane crash said it was a "very difficult and emotional time" as her family tries to come to terms with the shock and loss.
Robert Crome said Donna Bull was "a wonderful mother" to her children George and Kate, and "kind, thoughtful and caring" to her friends and family".
He said in a statement today: "She was also a dedicated and hard-working professional, as a teacher and educationalist, so her students will all miss her greatly. Words are inadequate to express our grief and loss.
"We hope that the UK and Russian authorities can help to ease any administrative difficulties. We extend our heartfelt sympathies to all those families in Russia who too have lost their loved ones in this tragedy."
More top news
Nicola Sturgeon will today pledge that her party will work with others to bring about "positive change" for ordinary people across the UK.
Half of teachers said the number of youngsters dealing with difficulties, such as depression, has risen compared to two years ago.
David Cameron will use a speech today to set out plans for patients to be able to access hospital services seven days a week.